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107999980 = 225111767431
BaseRepresentation
bin1100110111111…
…11001011101100
321112012222010021
412123333023230
5210121444410
614414451524
72450661514
oct633771354
9245188107
10107999980
1155a65a90
1230203ba4
13194b4c1a
14104b4844
159734eda
hex66ff2ec

107999980 has 96 divisors (see below), whose sum is σ = 266499072. Its totient is φ = 36326400.

The previous prime is 107999917. The next prime is 107999999. The reversal of 107999980 is 89999701.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250365 + ... + 250795.

It is an arithmetic number, because the mean of its divisors is an integer number (2776032).

Almost surely, 2107999980 is an apocalyptic number.

107999980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 107999980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133249536).

107999980 is an abundant number, since it is smaller than the sum of its proper divisors (158499092).

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

107999980 is a wasteful number, since it uses less digits than its factorization.

107999980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 52.

The square root of 107999980 is about 10392.3038831628. The cubic root of 107999980 is about 476.2202861941.

The spelling of 107999980 in words is "one hundred seven million, nine hundred ninety-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 17 20 22 34 44 55 67 68 85 110 134 170 187 220 268 335 340 374 431 670 737 748 862 935 1139 1340 1474 1724 1870 2155 2278 2948 3685 3740 4310 4556 4741 5695 7327 7370 8620 9482 11390 12529 14654 14740 18964 22780 23705 25058 28877 29308 36635 47410 50116 57754 62645 73270 80597 94820 115508 125290 144385 146540 161194 250580 288770 317647 322388 402985 490909 577540 635294 805970 981818 1270588 1588235 1611940 1963636 2454545 3176470 4909090 5399999 6352940 9818180 10799998 21599996 26999995 53999990 107999980