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2428144740 = 2232579719867
BaseRepresentation
bin1001000010111010…
…1000110001100100
320021012222112101200
42100232220301210
514433101112430
61040535322500
7114112614120
oct22056506144
96235875350
102428144740
11103669609a
12579220430
132c9091348
141906a8580
15e3285460
hex90ba8c64

2428144740 has 144 divisors (see below), whose sum is σ = 8504775552. Its totient is φ = 549255168.

The previous prime is 2428144723. The next prime is 2428144751. The reversal of 2428144740 is 474418242.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2428144695 and 2428144704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112287 + ... + 132153.

Almost surely, 22428144740 is an apocalyptic number.

2428144740 is a gapful number since it is divisible by the number (20) 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 2428144740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4252387776).

2428144740 is an abundant number, since it is smaller than the sum of its proper divisors (6076630812).

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

2428144740 is a wasteful number, since it uses less digits than its factorization.

2428144740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19986 (or 19981 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 36.

The square root of 2428144740 is about 49276.2086609755. The cubic root of 2428144740 is about 1344.0791899024.

The spelling of 2428144740 in words is "two billion, four hundred twenty-eight million, one hundred forty-four thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 97 105 126 140 180 194 210 252 291 315 388 420 485 582 630 679 873 970 1164 1260 1358 1455 1746 1940 2037 2716 2910 3395 3492 4074 4365 5820 6111 6790 8148 8730 10185 12222 13580 17460 19867 20370 24444 30555 39734 40740 59601 61110 79468 99335 119202 122220 139069 178803 198670 238404 278138 298005 357606 397340 417207 556276 596010 695345 715212 834414 894015 1192020 1251621 1390690 1668828 1788030 1927099 2086035 2503242 2781380 3576060 3854198 4172070 5006484 5781297 6258105 7708396 8344140 9635495 11562594 12516210 13489693 17343891 19270990 23125188 25032420 26979386 28906485 34687782 38541980 40469079 53958772 57812970 67448465 69375564 80938158 86719455 115625940 121407237 134896930 161876316 173438910 202345395 242814474 269793860 346877820 404690790 485628948 607036185 809381580 1214072370 2428144740