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53968865344 = 267124092
BaseRepresentation
bin110010010000110010…
…111000100001000000
312011022011221102100121
4302100302320201000
51341012012142334
640443140030024
73620253533512
oct622062704100
9164264842317
1053968865344
1120985021359
12a562092314
1351210acb64
14287d89bbb2
15160d019db4
hexc90cb8840

53968865344 has 63 divisors (see below), whose sum is σ = 108890318541. Its totient is φ = 26539322880.

The previous prime is 53968865341. The next prime is 53968865393. The reversal of 53968865344 is 44356886935.

The square root of 53968865344 is 232312.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 49323079744 + 4645785600 = 222088^2 + 68160^2 .

It is a Duffinian number.

Its product of digits (74649600) is a multiple of the sum of its prime factors (972).

It is not an unprimeable number, because it can be changed into a prime (53968865341) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 131953012 + ... + 131953420.

Almost surely, 253968865344 is an apocalyptic number.

53968865344 is the 232312-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53968865344

53968865344 is an abundant number, since it is smaller than the sum of its proper divisors (54921453197).

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

53968865344 is an frugal number, since it uses more digits than its factorization.

53968865344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 482 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 61.

The spelling of 53968865344 in words is "fifty-three billion, nine hundred sixty-eight million, eight hundred sixty-five thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 32 64 71 142 284 409 568 818 1136 1636 2272 3272 4544 5041 6544 10082 13088 20164 26176 29039 40328 58078 80656 116156 161312 167281 232312 322624 334562 464624 669124 929248 1338248 1858496 2061769 2676496 4123538 5352992 8247076 10705984 11876951 16494152 23753902 32988304 47507804 65976608 95015608 131953216 190031216 380062432 760124864 843263521 1686527042 3373054084 6746108168 13492216336 26984432672 53968865344