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51230545423 = 101785364591
BaseRepresentation
bin101111101101100101…
…000001011000001111
311220020100022100121021
4233231211001120033
51314410004423143
635311320215011
73462353310511
oct575545013017
9156210270537
1051230545423
111a7aa342042
129b1900a467
134aa599a505
14269dd31bb1
1514ec915ced
hexbed94160f

51230545423 has 8 divisors (see below), whose sum is σ = 51745167936. Its totient is φ = 50716068000.

The previous prime is 51230545417. The next prime is 51230545433. The reversal of 51230545423 is 32454503215.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-51230545423 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 (51230545403) 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, 760858 + ... + 825448.

It is an arithmetic number, because the mean of its divisors is an integer number (6468145992).

Almost surely, 251230545423 is an apocalyptic number.

51230545423 is a deficient number, since it is larger than the sum of its proper divisors (514622513).

51230545423 is a wasteful number, since it uses less digits than its factorization.

51230545423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72545.

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 51230545423 in words is "fifty-one billion, two hundred thirty million, five hundred forty-five thousand, four hundred twenty-three".

Divisors: 1 101 7853 64591 793153 6523691 507233123 51230545423