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51343002007 = 115989888887
BaseRepresentation
bin101111110100010010…
…000000100110010111
311220112011220202000221
4233310102000212113
51320122302031012
635330414415211
73465220213333
oct576422004627
9156464822027
1051343002007
111a857871370
129b4a801507
134ac3082a7b
1426b0c467c3
15150772b507
hexbf4480997

51343002007 has 16 divisors (see below), whose sum is σ = 57599942400. Its totient is φ = 45368741440.

The previous prime is 51343001953. The next prime is 51343002023. The reversal of 51343002007 is 70020034315.

It is a de Polignac number, because none of the positive numbers 2k-51343002007 is a prime.

It is a super-2 number, since 2×513430020072 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51343002037) 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 15 ways as a sum of consecutive naturals, for example, 386683 + ... + 502204.

It is an arithmetic number, because the mean of its divisors is an integer number (3599996400).

Almost surely, 251343002007 is an apocalyptic number.

51343002007 is a deficient number, since it is larger than the sum of its proper divisors (6256940393).

51343002007 is a wasteful number, since it uses less digits than its factorization.

51343002007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889046.

The product of its (nonzero) digits is 2520, while the sum is 25.

The spelling of 51343002007 in words is "fifty-one billion, three hundred forty-three million, two thousand, seven".

Divisors: 1 11 59 89 649 979 5251 57761 888887 9777757 52444333 79110943 576887663 870220373 4667545637 51343002007