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52197874191 = 3216358136121
BaseRepresentation
bin110000100111001111…
…000101101000001111
311222201202111202012200
4300213033011220033
51323400123433231
635551313332543
73525340416141
oct604717055017
9158652452180
1052197874191
1120156380501
12a148b67153
134bcb2088b8
1427525b6c91
1515577e1be6
hexc273c5a0f

52197874191 has 24 divisors (see below), whose sum is σ = 75884932656. Its totient is φ = 34573495680.

The previous prime is 52197874177. The next prime is 52197874231. The reversal of 52197874191 is 19147879125.

52197874191 is a `hidden beast` number, since 5 + 219 + 7 + 8 + 7 + 419 + 1 = 666.

52197874191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52197874191 - 217 = 52197743119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52197874691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8524611 + ... + 8530731.

It is an arithmetic number, because the mean of its divisors is an integer number (3161872194).

Almost surely, 252197874191 is an apocalyptic number.

52197874191 is a deficient number, since it is larger than the sum of its proper divisors (23687058465).

52197874191 is a wasteful number, since it uses less digits than its factorization.

52197874191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12103 (or 12100 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 54.

The spelling of 52197874191 in words is "fifty-two billion, one hundred ninety-seven million, eight hundred seventy-four thousand, one hundred ninety-one".

Divisors: 1 3 9 163 489 1467 5813 6121 17439 18363 52317 55089 947519 997723 2842557 2993169 8527671 8979507 35581373 106744119 320232357 5799763799 17399291397 52197874191