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53431330831 = 411642779333
BaseRepresentation
bin110001110000110000…
…010110100000001111
312002220201110211121221
4301300300112200033
51333411410041311
640313534504211
73601035550504
oct616060264017
9162821424557
1053431330831
112072965875a
12a432065067
1350669154b8
14282c3354ab
1515cac3a671
hexc70c1680f

53431330831 has 8 divisors (see below), whose sum is σ = 54738555984. Its totient is φ = 52124297280.

The previous prime is 53431330829. The next prime is 53431330853. The reversal of 53431330831 is 13803313435.

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 53431330831 - 21 = 53431330829 is a prime.

It is a super-2 number, since 2×534313308312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53431330891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633841 + ... + 713173.

It is an arithmetic number, because the mean of its divisors is an integer number (6842319498).

Almost surely, 253431330831 is an apocalyptic number.

53431330831 is a deficient number, since it is larger than the sum of its proper divisors (1307225153).

53431330831 is a wasteful number, since it uses less digits than its factorization.

53431330831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95801.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 53431330831 in words is "fifty-three billion, four hundred thirty-one million, three hundred thirty thousand, eight hundred thirty-one".

Divisors: 1 41 16427 79333 673507 3252653 1303203191 53431330831