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153114640 = 2457793461
BaseRepresentation
bin10010010000001…
…01100000010000
3101200010000210121
421020011200100
5303144132030
623105440024
73536311240
oct1110054020
9350100717
10153114640
117947a328
1243340014
132594c7a3
1416499b20
15d69747a
hex9205810

153114640 has 80 divisors (see below), whose sum is σ = 412116480. Its totient is φ = 51816960.

The previous prime is 153114613. The next prime is 153114641. The reversal of 153114640 is 46411351.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (153114641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42510 + ... + 45970.

It is an arithmetic number, because the mean of its divisors is an integer number (5151456).

Almost surely, 2153114640 is an apocalyptic number.

153114640 is a gapful number since it is divisible by the number (10) 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 153114640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206058240).

153114640 is an abundant number, since it is smaller than the sum of its proper divisors (259001840).

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

153114640 is a wasteful number, since it uses less digits than its factorization.

153114640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560 (or 3554 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 153114640 is about 12373.9500564694. The cubic root of 153114640 is about 534.9816746278.

Adding to 153114640 its reverse (46411351), we get a palindrome (199525991).

The spelling of 153114640 in words is "one hundred fifty-three million, one hundred fourteen thousand, six hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 79 80 112 140 158 280 316 395 553 560 632 790 1106 1264 1580 2212 2765 3160 3461 4424 5530 6320 6922 8848 11060 13844 17305 22120 24227 27688 34610 44240 48454 55376 69220 96908 121135 138440 193816 242270 273419 276880 387632 484540 546838 969080 1093676 1367095 1913933 1938160 2187352 2734190 3827866 4374704 5468380 7655732 9569665 10936760 15311464 19139330 21873520 30622928 38278660 76557320 153114640