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118972492 = 2253561191
BaseRepresentation
bin1110001011101…
…10000001001100
322021212102120121
413011312001030
5220424104432
615445554324
72643151402
oct705660114
9267772517
10118972492
116117a881
1233a159a4
131b857332
1411b2d472
15a6a1197
hex717604c

118972492 has 12 divisors (see below), whose sum is σ = 212130576. Its totient is φ = 58363760.

The previous prime is 118972417. The next prime is 118972517. The reversal of 118972492 is 294279811.

It is a happy number.

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, 280384 + ... + 280807.

It is an arithmetic number, because the mean of its divisors is an integer number (17677548).

Almost surely, 2118972492 is an apocalyptic number.

It is an amenable number.

118972492 is a deficient number, since it is larger than the sum of its proper divisors (93158084).

118972492 is a wasteful number, since it uses less digits than its factorization.

118972492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561248 (or 561246 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 118972492 is about 10907.4512146514. The cubic root of 118972492 is about 491.8305704748.

The spelling of 118972492 in words is "one hundred eighteen million, nine hundred seventy-two thousand, four hundred ninety-two".

Divisors: 1 2 4 53 106 212 561191 1122382 2244764 29743123 59486246 118972492