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53190761947 = 90758644721
BaseRepresentation
bin110001100010011010…
…101001110111011011
312002021221210200011021
4301202122221313123
51332413313340242
640234022343311
73562055005501
oct614232516733
9162257720137
1053190761947
11206158867a4
12a38558ab37
135028b2574b
1428083d2671
1515b4a6ab67
hexc626a9ddb

53190761947 has 4 divisors (see below), whose sum is σ = 53249407576. Its totient is φ = 53132116320.

The previous prime is 53190761941. The next prime is 53190762007. The reversal of 53190761947 is 74916709135.

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

It is a cyclic number.

It is not a de Polignac number, because 53190761947 - 235 = 18831023579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53190761894 and 53190761903.

It is not an unprimeable number, because it can be changed into a prime (53190761941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29321454 + ... + 29323267.

It is an arithmetic number, because the mean of its divisors is an integer number (13312351894).

Almost surely, 253190761947 is an apocalyptic number.

53190761947 is a deficient number, since it is larger than the sum of its proper divisors (58645629).

53190761947 is an equidigital number, since it uses as much as digits as its factorization.

53190761947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58645628.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 53190761947 in words is "fifty-three billion, one hundred ninety million, seven hundred sixty-one thousand, nine hundred forty-seven".

Divisors: 1 907 58644721 53190761947