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131433468452 = 221121371294211
BaseRepresentation
bin111101001101000001…
…0111001001000100100
3110120020211020222122222
41322122002321020210
54123133431442302
6140214003211512
712332021022446
oct1723202711044
9416224228588
10131433468452
1150816848200
1221580976b98
13c517b70c10
14650ba10496
153643b19da2
hex1e9a0b9224

131433468452 has 72 divisors (see below), whose sum is σ = 276102662976. Its totient is φ = 54370008000.

The previous prime is 131433468451. The next prime is 131433468461. The reversal of 131433468452 is 254864334131.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (131433468451) 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, 299627 + ... + 593837.

It is an arithmetic number, because the mean of its divisors is an integer number (3834759208).

Almost surely, 2131433468452 is an apocalyptic number.

It is an amenable number.

131433468452 is an abundant number, since it is smaller than the sum of its proper divisors (144669194524).

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

131433468452 is a wasteful number, since it uses less digits than its factorization.

131433468452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294321 (or 294308 counting only the distinct ones).

The product of its digits is 829440, while the sum is 44.

The spelling of 131433468452 in words is "one hundred thirty-one billion, four hundred thirty-three million, four hundred sixty-eight thousand, four hundred fifty-two".

Divisors: 1 2 4 11 13 22 26 44 52 71 121 142 143 242 284 286 484 572 781 923 1562 1573 1846 3124 3146 3692 6292 8591 10153 17182 20306 34364 40612 111683 223366 294211 446732 588422 1176844 3236321 3824743 6472642 7649486 12945284 15298972 20888981 35599531 41777962 42072173 71199062 83555924 84144346 142398124 168288692 229778791 271556753 459557582 462793903 543113506 919115164 925587806 1086227012 1851175612 2527566701 2987124283 5055133402 5974248566 10110266804 11948497132 32858367113 65716734226 131433468452