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53124560221 = 314141797451
BaseRepresentation
bin110001011110011110…
…000111010101011101
312002010100020021110111
4301132132013111131
51332244341411341
640223255410021
73560322211525
oct613636072535
9162110207414
1053124560221
112059147a427
12a367383911
1350181b6a25
1427dd6bc685
1515add40681
hexc5e78755d

53124560221 has 8 divisors (see below), whose sum is σ = 56175775488. Its totient is φ = 50156940000.

The previous prime is 53124560171. The next prime is 53124560233. The reversal of 53124560221 is 12206542135.

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

It is not a de Polignac number, because 53124560221 - 211 = 53124558173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53124561221) 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, 20897455 + ... + 20899996.

It is an arithmetic number, because the mean of its divisors is an integer number (7021971936).

Almost surely, 253124560221 is an apocalyptic number.

It is an amenable number.

53124560221 is a deficient number, since it is larger than the sum of its proper divisors (3051215267).

53124560221 is a wasteful number, since it uses less digits than its factorization.

53124560221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41797523.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 53124560221 in words is "fifty-three billion, one hundred twenty-four million, five hundred sixty thousand, two hundred twenty-one".

Divisors: 1 31 41 1271 41797451 1295720981 1713695491 53124560221