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109931382 = 23211555209
BaseRepresentation
bin1101000110101…
…10101101110110
321122212002111200
412203112231312
5211120301012
614524113330
72503254441
oct643265566
9248762450
10109931382
1157065090
1230995846
1319a10072
1410858658
1599b73dc
hex68d6b76

109931382 has 24 divisors (see below), whose sum is σ = 259838280. Its totient is φ = 33312480.

The previous prime is 109931377. The next prime is 109931383. The reversal of 109931382 is 283139901.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109931383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277407 + ... + 277802.

It is an arithmetic number, because the mean of its divisors is an integer number (10826595).

Almost surely, 2109931382 is an apocalyptic number.

109931382 is an abundant number, since it is smaller than the sum of its proper divisors (149906898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109931382 is a wasteful number, since it uses less digits than its factorization.

109931382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555228 (or 555225 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 109931382 is about 10484.8167365958. The cubic root of 109931382 is about 479.0423353926.

The spelling of 109931382 in words is "one hundred nine million, nine hundred thirty-one thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 555209 1110418 1665627 3331254 4996881 6107299 9993762 12214598 18321897 36643794 54965691 109931382