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2390784144 = 2437127179313
BaseRepresentation
bin1000111010000000…
…0111100010010000
320011121200102021220
42032200013202100
514344020043034
61033122445040
7113150221110
oct21640074220
96147612256
102390784144
111017598571
12568803780
132c140cc98
14189741040
15ded55749
hex8e807890

2390784144 has 160 divisors (see below), whose sum is σ = 7176683520. Its totient is φ = 671763456.

The previous prime is 2390784101. The next prime is 2390784161. The reversal of 2390784144 is 4414870932.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 2390784096 and 2390784105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7638132 + ... + 7638444.

It is an arithmetic number, because the mean of its divisors is an integer number (44854272).

Almost surely, 22390784144 is an apocalyptic number.

2390784144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2390784144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3588341760).

2390784144 is an abundant number, since it is smaller than the sum of its proper divisors (4785899376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2390784144 is a wasteful number, since it uses less digits than its factorization.

2390784144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 2390784144 is about 48895.6454502852. The cubic root of 2390784144 is about 1337.1499803686.

The spelling of 2390784144 in words is "two billion, three hundred ninety million, seven hundred eighty-four thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 127 168 179 254 313 336 358 381 508 537 626 716 762 889 939 1016 1074 1252 1253 1432 1524 1778 1878 2032 2148 2191 2504 2506 2667 2864 3048 3556 3756 3759 4296 4382 5008 5012 5334 6096 6573 7112 7512 7518 8592 8764 10024 10668 13146 14224 15024 15036 17528 20048 21336 22733 26292 30072 35056 39751 42672 45466 52584 56027 60144 68199 79502 90932 105168 112054 119253 136398 159004 159131 168081 181864 224108 238506 272796 278257 318008 318262 336162 363728 392189 448216 477012 477393 545592 556514 636016 636524 672324 784378 834771 896432 954024 954786 1091184 1113028 1176567 1273048 1344648 1568756 1669542 1908048 1909572 2226056 2353134 2546096 2689296 3137512 3339084 3819144 4452112 4706268 6275024 6678168 7115429 7638288 9412536 13356336 14230858 18825072 21346287 28461716 42692574 49808003 56923432 85385148 99616006 113846864 149424009 170770296 199232012 298848018 341540592 398464024 597696036 796928048 1195392072 2390784144