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40072974007 = 1127997130121
BaseRepresentation
bin100101010100100010…
…010000111010110111
310211102202101000000111
4211110202100322313
51124032140132012
630224222523451
72616021442003
oct452442207267
9124382330014
1040072974007
1115aa4170540
127924436587
133a18222951
141d22165703
1510980edba7
hex954890eb7

40072974007 has 8 divisors (see below), whose sum is σ = 43717869072. Its totient is φ = 36428395200.

The previous prime is 40072973959. The next prime is 40072974013. The reversal of 40072974007 is 70047927004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40072974007 - 27 = 40072973879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40072974017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242907 + ... + 373027.

It is an arithmetic number, because the mean of its divisors is an integer number (5464733634).

Almost surely, 240072974007 is an apocalyptic number.

40072974007 is a deficient number, since it is larger than the sum of its proper divisors (3644895065).

40072974007 is a wasteful number, since it uses less digits than its factorization.

40072974007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158129.

The product of its (nonzero) digits is 98784, while the sum is 40.

The spelling of 40072974007 in words is "forty billion, seventy-two million, nine hundred seventy-four thousand, seven".

Divisors: 1 11 27997 130121 307967 1431331 3642997637 40072974007