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40005151144 = 2372102053957
BaseRepresentation
bin100101010000011111…
…100010100110101000
310211021000202020112121
4211100133202212220
51123412304314034
630213401121024
72614236113500
oct452037424650
9124230666477
1040005151144
1115a69957192
127905789174
133a0716708a
141d1714ca00
1510921a31b4
hex9507e29a8

40005151144 has 24 divisors (see below), whose sum is σ = 87256134090. Its totient is φ = 17145064608.

The previous prime is 40005151127. The next prime is 40005151181. The reversal of 40005151144 is 44115150004.

It can be written as a sum of positive squares in only one way, i.e., 39337962244 + 667188900 = 198338^2 + 25830^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51026587 + ... + 51027370.

Almost surely, 240005151144 is an apocalyptic number.

It is an amenable number.

40005151144 is an abundant number, since it is smaller than the sum of its proper divisors (47250982946).

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

40005151144 is a wasteful number, since it uses less digits than its factorization.

40005151144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102053977 (or 102053966 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 40005151144 in words is "forty billion, five million, one hundred fifty-one thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 102053957 204107914 408215828 714377699 816431656 1428755398 2857510796 5000643893 5715021592 10001287786 20002575572 40005151144