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118890297 = 3213210033
BaseRepresentation
bin1110001011000…
…01111100111001
322021201020211100
413011201330321
5220413442142
615444122013
72642356641
oct705417471
9267636740
10118890297
1161124049
1233996309
131b828ab6
1411b0b521
15a686b4c
hex7161f39

118890297 has 6 divisors (see below), whose sum is σ = 171730442. Its totient is φ = 79260192.

The previous prime is 118890293. The next prime is 118890323. The reversal of 118890297 is 792098811.

It can be written as a sum of positive squares in only one way, i.e., 75012921 + 43877376 = 8661^2 + 6624^2 .

It is not a de Polignac number, because 118890297 - 22 = 118890293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118890293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6605008 + ... + 6605025.

Almost surely, 2118890297 is an apocalyptic number.

It is an amenable number.

118890297 is a deficient number, since it is larger than the sum of its proper divisors (52840145).

118890297 is a wasteful number, since it uses less digits than its factorization.

118890297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13210039 (or 13210036 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 118890297 is about 10903.6827264920. The cubic root of 118890297 is about 491.7172800652.

The spelling of 118890297 in words is "one hundred eighteen million, eight hundred ninety thousand, two hundred ninety-seven".

Divisors: 1 3 9 13210033 39630099 118890297