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40572906654 = 2371580361129
BaseRepresentation
bin100101110010010101…
…010110110010011110
310212201121002012200110
4211302111112302132
51131043131003104
630350002110450
72634302005410
oct456225266236
9125647065613
1040572906654
1116230391315
127a4394b426
133a97983197
141d6c7009b0
1510c6e51e89
hex972556c9e

40572906654 has 32 divisors (see below), whose sum is σ = 92745457920. Its totient is φ = 11591335872.

The previous prime is 40572906653. The next prime is 40572906697. The reversal of 40572906654 is 45660927504.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40572906653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633162 + ... + 694290.

It is an arithmetic number, because the mean of its divisors is an integer number (2898295560).

Almost surely, 240572906654 is an apocalyptic number.

40572906654 is an abundant number, since it is smaller than the sum of its proper divisors (52172551266).

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

40572906654 is a wasteful number, since it uses less digits than its factorization.

40572906654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76944.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 40572906654 in words is "forty billion, five hundred seventy-two million, nine hundred six thousand, six hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 15803 31606 47409 61129 94818 110621 122258 183387 221242 331863 366774 427903 663726 855806 1283709 2567418 966021587 1932043174 2898064761 5796129522 6762151109 13524302218 20286453327 40572906654