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40712572761 = 371938693941
BaseRepresentation
bin100101111010101010…
…001000111101011001
310220002022212222120020
4211322222020331121
51131334404312021
630411511421053
72640616105260
oct457252107531
9126068788506
1040712572761
11162a2205553
127a82684789
133aba8a4553
141d830995d7
1510d433e7c6
hex97aa88f59

40712572761 has 8 divisors (see below), whose sum is σ = 62038206144. Its totient is φ = 23264327280.

The previous prime is 40712572759. The next prime is 40712572777. The reversal of 40712572761 is 16727521704.

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

It is not a de Polignac number, because 40712572761 - 21 = 40712572759 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40712572261) 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 7 ways as a sum of consecutive naturals, for example, 969346950 + ... + 969346991.

It is an arithmetic number, because the mean of its divisors is an integer number (7754775768).

Almost surely, 240712572761 is an apocalyptic number.

It is an amenable number.

40712572761 is a deficient number, since it is larger than the sum of its proper divisors (21325633383).

40712572761 is a wasteful number, since it uses less digits than its factorization.

40712572761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938693951.

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 40712572761 in words is "forty billion, seven hundred twelve million, five hundred seventy-two thousand, seven hundred sixty-one".

Divisors: 1 3 7 21 1938693941 5816081823 13570857587 40712572761