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104973987 = 389393161
BaseRepresentation
bin1100100000111…
…00011010100011
321022112020020110
412100130122203
5203333131422
614225542403
72413156416
oct620343243
9238466213
10104973987
1154289568
122b1a4a03
13189957b1
14dd27b7d
15933860c
hex641c6a3

104973987 has 8 divisors (see below), whose sum is σ = 141538320. Its totient is φ = 69196160.

The previous prime is 104973971. The next prime is 104973991. The reversal of 104973987 is 789379401.

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

It is a cyclic number.

It is not a de Polignac number, because 104973987 - 24 = 104973971 is a prime.

It is a super-2 number, since 2×1049739872 = 22039075893352338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104973907) 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, 196314 + ... + 196847.

It is an arithmetic number, because the mean of its divisors is an integer number (17692290).

Almost surely, 2104973987 is an apocalyptic number.

104973987 is a deficient number, since it is larger than the sum of its proper divisors (36564333).

104973987 is an equidigital number, since it uses as much as digits as its factorization.

104973987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393253.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 104973987 is about 10245.6813829047. The cubic root of 104973987 is about 471.7304356477.

The spelling of 104973987 in words is "one hundred four million, nine hundred seventy-three thousand, nine hundred eighty-seven".

Divisors: 1 3 89 267 393161 1179483 34991329 104973987