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53215340535 = 3257414120429
BaseRepresentation
bin110001100011111000…
…011010011111110111
312002100200001101122100
4301203320122133313
51332441111344120
640240301233143
73562503634260
oct614370323767
9162320041570
1053215340535
1120628743a85
12a3918627b3
135030c4cba6
14280b78d967
1515b6cc3490
hexc63e1a7f7

53215340535 has 48 divisors (see below), whose sum is σ = 107988229440. Its totient is φ = 23733665280.

The previous prime is 53215340509. The next prime is 53215340561. The reversal of 53215340535 is 53504351235.

53215340535 is a `hidden beast` number, since 5 + 3 + 215 + 3 + 405 + 35 = 666.

It is an interprime number because it is at equal distance from previous prime (53215340509) and next prime (53215340561).

It is not a de Polignac number, because 53215340535 - 27 = 53215340407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53215340535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2047300 + ... + 2073129.

It is an arithmetic number, because the mean of its divisors is an integer number (2249754780).

Almost surely, 253215340535 is an apocalyptic number.

53215340535 is an abundant number, since it is smaller than the sum of its proper divisors (54772888905).

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

53215340535 is a wasteful number, since it uses less digits than its factorization.

53215340535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4120488 (or 4120485 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 53215340535 in words is "fifty-three billion, two hundred fifteen million, three hundred forty thousand, five hundred thirty-five".

Divisors: 1 3 5 7 9 15 21 35 41 45 63 105 123 205 287 315 369 615 861 1435 1845 2583 4305 12915 4120429 12361287 20602145 28843003 37083861 61806435 86529009 144215015 168937589 185419305 259587027 432645045 506812767 844687945 1182563123 1297935135 1520438301 2534063835 3547689369 5912815615 7602191505 10643068107 17738446845 53215340535