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51230530042 = 2164471557443
BaseRepresentation
bin101111101101100100…
…111101100111111010
311220020100021120111121
4233231210331213322
51314410003430132
635311320015454
73462353214616
oct575544754772
9156210246447
1051230530042
111a7aa33152a
129b1900158a
134aa5993503
14269dd2a346
1514ec911497
hexbed93d9fa

51230530042 has 8 divisors (see below), whose sum is σ = 76850516736. Its totient is φ = 25613691132.

The previous prime is 51230530009. The next prime is 51230530079. The reversal of 51230530042 is 24003503215.

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

It is a junction number, because it is equal to n+sod(n) for n = 51230529989 and 51230530016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745828 + ... + 811615.

It is an arithmetic number, because the mean of its divisors is an integer number (9606314592).

Almost surely, 251230530042 is an apocalyptic number.

51230530042 is a deficient number, since it is larger than the sum of its proper divisors (25619986694).

51230530042 is a wasteful number, since it uses less digits than its factorization.

51230530042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573892.

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 51230530042 in words is "fifty-one billion, two hundred thirty million, five hundred thirty thousand, forty-two".

Divisors: 1 2 16447 32894 1557443 3114886 25615265021 51230530042