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18407713126 = 2115327756993
BaseRepresentation
bin10001001001001011…
…110110100101100110
31202111212100201021211
4101021023312211212
5300144333310001
612242325102034
71221105660055
oct211113664546
952455321254
1018407713126
117896746360
12369885791a
13197484285a
14c68a3c39c
1572b092351
hex4492f6966

18407713126 has 32 divisors (see below), whose sum is σ = 30801381408. Its totient is φ = 8179491840.

The previous prime is 18407713099. The next prime is 18407713147. The reversal of 18407713126 is 62131770481.

It is a happy number.

It is a super-2 number, since 2×184077131262 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294486 + ... + 351478.

It is an arithmetic number, because the mean of its divisors is an integer number (962543169).

Almost surely, 218407713126 is an apocalyptic number.

18407713126 is a deficient number, since it is larger than the sum of its proper divisors (12393668282).

18407713126 is a wasteful number, since it uses less digits than its factorization.

18407713126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57336.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 18407713126 in words is "eighteen billion, four hundred seven million, seven hundred thirteen thousand, one hundred twenty-six".

Divisors: 1 2 11 22 53 106 277 554 583 1166 3047 6094 14681 29362 56993 113986 161491 322982 626923 1253846 3020629 6041258 15787061 31574122 33226919 66453838 173657671 347315342 836714233 1673428466 9203856563 18407713126