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18007665138962 = 247918797145239
BaseRepresentation
bin1000001100000101111000…
…11110111101110100010010
32100202111221010221001121022
410012002330132331310102
54330014144233421322
6102144335051355442
73536003505101462
oct406027436756422
970674833831538
1018007665138962
11581300a56a644
12202a00a752b82
13a08166aaa265
1446380b7c9ba2
15213649caa942
hex1060bc7bdd12

18007665138962 has 8 divisors (see below), whose sum is σ = 27067889145600. Its totient is φ = 8985035423764.

The previous prime is 18007665138943. The next prime is 18007665138977. The reversal of 18007665138962 is 26983156670081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18007665138895 and 18007665138904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9398571662 + ... + 9398573577.

It is an arithmetic number, because the mean of its divisors is an integer number (3383486143200).

Almost surely, 218007665138962 is an apocalyptic number.

18007665138962 is a deficient number, since it is larger than the sum of its proper divisors (9060224006638).

18007665138962 is a wasteful number, since it uses less digits than its factorization.

18007665138962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18797145720.

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 18007665138962 in words is "eighteen trillion, seven billion, six hundred sixty-five million, one hundred thirty-eight thousand, nine hundred sixty-two".

Divisors: 1 2 479 958 18797145239 37594290478 9003832569481 18007665138962