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53407423861 = 1123311678767
BaseRepresentation
bin110001101111010101…
…001001110101110101
312002212001111020102121
4301233111021311311
51333334300030421
640311322235541
73600325420051
oct615725116565
9162761436377
1053407423861
112071710a030
12a426055bb1
13506199496c
1428290b0c61
1515c8ab6d41
hexc6f549d75

53407423861 has 16 divisors (see below), whose sum is σ = 60991377408. Its totient is φ = 46291841200.

The previous prime is 53407423847. The next prime is 53407423871. The reversal of 53407423861 is 16832470435.

It is not a de Polignac number, because 53407423861 - 27 = 53407423733 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 (53407423801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260701 + ... + 418066.

It is an arithmetic number, because the mean of its divisors is an integer number (3811961088).

Almost surely, 253407423861 is an apocalyptic number.

It is an amenable number.

53407423861 is a deficient number, since it is larger than the sum of its proper divisors (7583953547).

53407423861 is a wasteful number, since it uses less digits than its factorization.

53407423861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679112.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 53407423861 in words is "fifty-three billion, four hundred seven million, four hundred twenty-three thousand, eight hundred sixty-one".

Divisors: 1 11 23 253 311 3421 7153 78683 678767 7466437 15611641 171728051 211096537 2322061907 4855220351 53407423861