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40330312087 = 133102331699
BaseRepresentation
bin100101100011110111…
…111011100110010111
310212002200121010111111
4211203313323212113
51130044024441322
630305534315451
72625264665542
oct454367734627
9125080533444
1040330312087
111611645643a
127996658b87
133a596343c0
141d483d1859
1510b09d2177
hex963dfb997

40330312087 has 4 divisors (see below), whose sum is σ = 43432643800. Its totient is φ = 37227980376.

The previous prime is 40330312081. The next prime is 40330312097. The reversal of 40330312087 is 78021303304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40330312087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40330312081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1551165837 + ... + 1551165862.

It is an arithmetic number, because the mean of its divisors is an integer number (10858160950).

Almost surely, 240330312087 is an apocalyptic number.

40330312087 is a deficient number, since it is larger than the sum of its proper divisors (3102331713).

40330312087 is a wasteful number, since it uses less digits than its factorization.

40330312087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102331712.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 40330312087 in words is "forty billion, three hundred thirty million, three hundred twelve thousand, eighty-seven".

Divisors: 1 13 3102331699 40330312087