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107231985 = 3357532141
BaseRepresentation
bin1100110010000…
…11101011110001
321110202221122000
412121003223301
5204422410420
614350204213
72441312460
oct631035361
9243687560
10107231985
1155590a83
122bab3669
13192a64a3
14103549d7
159632690
hex6643af1

107231985 has 64 divisors (see below), whose sum is σ = 222082560. Its totient is φ = 48072960.

The previous prime is 107231923. The next prime is 107232001. The reversal of 107231985 is 589132701.

It is not a de Polignac number, because 107231985 - 26 = 107231921 is a prime.

It is a super-2 number, since 2×1072319852 = 22997397214080450, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49015 + ... + 51155.

It is an arithmetic number, because the mean of its divisors is an integer number (3470040).

Almost surely, 2107231985 is an apocalyptic number.

107231985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

107231985 is an abundant number, since it is smaller than the sum of its proper divisors (114850575).

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

107231985 is a wasteful number, since it uses less digits than its factorization.

107231985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215 (or 2209 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 107231985 is about 10355.2877796805. The cubic root of 107231985 is about 475.0887885731.

The spelling of 107231985 in words is "one hundred seven million, two hundred thirty-one thousand, nine hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 53 63 105 135 159 189 265 315 371 477 795 945 1113 1431 1855 2141 2385 3339 5565 6423 7155 10017 10705 14987 16695 19269 32115 44961 50085 57807 74935 96345 113473 134883 224805 289035 340419 404649 567365 674415 794311 1021257 1702095 2023245 2382933 3063771 3971555 5106285 7148799 11914665 15318855 21446397 35743995 107231985