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215464145155014 = 23748168110650407
BaseRepresentation
bin110000111111011010100111…
…110101010111001111000110
31001020220011121201222022020210
4300333122213311113033012
5211220131032124430024
62042130510052340250
763245525243320110
oct6077324765271706
91036804551868223
10215464145155014
116272091588a628
12201ba48a314686
13932c24928c102
143b2c73d88c3b0
1519d9ab46e9129
hexc3f6a7d573c6

215464145155014 has 32 divisors (see below), whose sum is σ = 492490543320576. Its totient is φ = 61561050744960.

The previous prime is 215464145154991. The next prime is 215464145155037. The reversal of 215464145155014 is 410551541464512.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (215464145154991) and next prime (215464145155037).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14905399 + ... + 25555805.

It is an arithmetic number, because the mean of its divisors is an integer number (15390329478768).

Almost surely, 2215464145155014 is an apocalyptic number.

215464145155014 is an abundant number, since it is smaller than the sum of its proper divisors (277026398165562).

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

215464145155014 is a wasteful number, since it uses less digits than its factorization.

215464145155014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11132100.

The product of its (nonzero) digits is 1920000, while the sum is 48.

The spelling of 215464145155014 in words is "two hundred fifteen trillion, four hundred sixty-four billion, one hundred forty-five million, one hundred fifty-five thousand, fourteen".

Divisors: 1 2 3 6 7 14 21 42 481681 963362 1445043 2890086 3371767 6743534 10115301 10650407 20230602 21300814 31951221 63902442 74552849 149105698 223658547 447317094 5130098694167 10260197388334 15390296082501 30780592165002 35910690859169 71821381718338 107732072577507 215464145155014