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18714290043488 = 251347957154769
BaseRepresentation
bin1000100000101010000101…
…00111000011101001100000
32110021001212001100110212112
410100111002213003221200
54423103331222342423
6103445120503414452
73641030360506454
oct420250247035140
973231761313775
1018714290043488
115a6575a938046
122122b55a54428
13a5999991b440
14489ac28ca664
15226c05787a78
hex1105429c3a60

18714290043488 has 48 divisors (see below), whose sum is σ = 40522104342720. Its totient is φ = 8453590910976.

The previous prime is 18714290043451. The next prime is 18714290043499. The reversal of 18714290043488 is 88434009241781.

It is a super-2 number, since 2×187142900434882 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478557833 + ... + 478596936.

It is an arithmetic number, because the mean of its divisors is an integer number (844210507140).

Almost surely, 218714290043488 is an apocalyptic number.

It is an amenable number.

18714290043488 is an abundant number, since it is smaller than the sum of its proper divisors (21807814299232).

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

18714290043488 is a wasteful number, since it uses less digits than its factorization.

18714290043488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957154839 (or 957154831 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 59.

The spelling of 18714290043488 in words is "eighteen trillion, seven hundred fourteen billion, two hundred ninety million, forty-three thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 13 16 26 32 47 52 94 104 188 208 376 416 611 752 1222 1504 2444 4888 9776 19552 957154769 1914309538 3828619076 7657238152 12443011997 15314476304 24886023994 30628952608 44986274143 49772047988 89972548286 99544095976 179945096572 199088191952 359890193144 398176383904 584821563859 719780386288 1169643127718 1439560772576 2339286255436 4678572510872 9357145021744 18714290043488