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84407240892 = 22313686378839
BaseRepresentation
bin100111010011100010…
…0000100100010111100
322001212111010002221010
41032213010010202330
52340331223202032
6102435352035220
76045455465262
oct1164704044274
9261774102833
1084407240892
1132884761427
1214437992b10
137c62231870
14412a21a432
1522e0387ccc
hex13a71048bc

84407240892 has 48 divisors (see below), whose sum is σ = 212133841920. Its totient is φ = 25967345088.

The previous prime is 84407240663. The next prime is 84407240893. The reversal of 84407240892 is 29804270448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84407240893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1031209 + ... + 1110047.

It is an arithmetic number, because the mean of its divisors is an integer number (4419455040).

Almost surely, 284407240892 is an apocalyptic number.

It is an amenable number.

84407240892 is an abundant number, since it is smaller than the sum of its proper divisors (127726601028).

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

84407240892 is a wasteful number, since it uses less digits than its factorization.

84407240892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85722 (or 85720 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 84407240892 in words is "eighty-four billion, four hundred seven million, two hundred forty thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 6863 13726 20589 27452 41178 78839 82356 89219 157678 178438 236517 267657 315356 356876 473034 535314 946068 1024907 1070628 2049814 3074721 4099628 6149442 12298884 541072057 1082144114 1623216171 2164288228 3246432342 6492864684 7033936741 14067873482 21101810223 28135746964 42203620446 84407240892