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51212535001 = 195874591817
BaseRepresentation
bin101111101100100000…
…010100010011011001
311220012002102022221121
4233230200110103121
51314340402110001
635305434205241
73462044236135
oct575440242331
9156162368847
1051212535001
111a7a01605a1
129b12b83821
134aa2032864
14269b7a43c5
1514eb0596a1
hexbec8144d9

51212535001 has 8 divisors (see below), whose sum is σ = 53999779680. Its totient is φ = 48434475168.

The previous prime is 51212534993. The next prime is 51212535013. The reversal of 51212535001 is 10053521215.

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 51212535001 - 23 = 51212534993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51212532001) 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, 2284756 + ... + 2307061.

It is an arithmetic number, because the mean of its divisors is an integer number (6749972460).

Almost surely, 251212535001 is an apocalyptic number.

It is an amenable number.

51212535001 is a deficient number, since it is larger than the sum of its proper divisors (2787244679).

51212535001 is a wasteful number, since it uses less digits than its factorization.

51212535001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592423.

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 51212535001 in words is "fifty-one billion, two hundred twelve million, five hundred thirty-five thousand, one".

Divisors: 1 19 587 11153 4591817 87244523 2695396579 51212535001