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52890527481 = 3114337273099
BaseRepresentation
bin110001010000100001…
…010110011011111001
312001112000212011220020
4301100201112123321
51331304433334411
640144135321053
73551451031401
oct612041263371
9161460764806
1052890527481
1120481362140
12a300b20189
134cab87500c
1427ba59b801
151598512606
hexc508566f9

52890527481 has 16 divisors (see below), whose sum is σ = 78720787200. Its totient is φ = 31309402320.

The previous prime is 52890527441. The next prime is 52890527491. The reversal of 52890527481 is 18472509825.

It is not a de Polignac number, because 52890527481 - 211 = 52890525433 is a prime.

It is a super-2 number, since 2×528905274812 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52890527401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18635131 + ... + 18637968.

It is an arithmetic number, because the mean of its divisors is an integer number (4920049200).

Almost surely, 252890527481 is an apocalyptic number.

It is an amenable number.

52890527481 is a deficient number, since it is larger than the sum of its proper divisors (25830259719).

52890527481 is a wasteful number, since it uses less digits than its factorization.

52890527481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37273156.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 52890527481 in words is "fifty-two billion, eight hundred ninety million, five hundred twenty-seven thousand, four hundred eighty-one".

Divisors: 1 3 11 33 43 129 473 1419 37273099 111819297 410004089 1230012267 1602743257 4808229771 17630175827 52890527481