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53137619216730 = 235573211873457
BaseRepresentation
bin11000001010100000100001…
…11010101110100101011010
320222010220111001021002200000
430011100100322232211122
523431101321004413410
6305003030230153430
714123031511625346
oct1405202072564532
9228126431232600
1053137619216730
1115a275a0831224
125b625151b2876
132385b187c6c69
14d19c35872626
15622371097dc0
hex305410eae95a

53137619216730 has 288 divisors, whose sum is σ = 145428754895424. Its totient is φ = 13960108228608.

The previous prime is 53137619216687. The next prime is 53137619216743. The reversal of 53137619216730 is 3761291673135.

It is a happy number.

53137619216730 is a `hidden beast` number, since 5 + 3 + 1 + 3 + 7 + 619 + 2 + 16 + 7 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 15371019162 + ... + 15371022618.

It is an arithmetic number, because the mean of its divisors is an integer number (504960954498).

Almost surely, 253137619216730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53137619216730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72714377447712).

53137619216730 is an abundant number, since it is smaller than the sum of its proper divisors (92291135678694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53137619216730 is a wasteful number, since it uses less digits than its factorization.

53137619216730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4812 (or 4727 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 53137619216730 in words is "fifty-three trillion, one hundred thirty-seven billion, six hundred nineteen million, two hundred sixteen thousand, seven hundred thirty".