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18058869196 = 2261401318443
BaseRepresentation
bin10000110100011001…
…000111100111001100
31201121112221121101021
4100310121013213030
5243441032303241
612143544123524
71206341566264
oct206431074714
951545847337
1018058869196
117727840795
1235bba665a4
13191a4a2924
14c345927a4
1570a6360d1
hex4346479cc

18058869196 has 24 divisors (see below), whose sum is σ = 32130849744. Its totient is φ = 8878716480.

The previous prime is 18058869149. The next prime is 18058869197. The reversal of 18058869196 is 69196885081.

It is a super-2 number, since 2×180588691962 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is not an unprimeable number, because it can be changed into a prime (18058869197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969951 + ... + 988393.

It is an arithmetic number, because the mean of its divisors is an integer number (1338785406).

Almost surely, 218058869196 is an apocalyptic number.

It is an amenable number.

18058869196 is a deficient number, since it is larger than the sum of its proper divisors (14071980548).

18058869196 is a wasteful number, since it uses less digits than its factorization.

18058869196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22521 (or 22519 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 61.

The spelling of 18058869196 in words is "eighteen billion, fifty-eight million, eight hundred sixty-nine thousand, one hundred ninety-six".

Divisors: 1 2 4 61 122 244 4013 8026 16052 18443 36886 73772 244793 489586 979172 1125023 2250046 4500092 74011759 148023518 296047036 4514717299 9029434598 18058869196