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107987712 = 283753379
BaseRepresentation
bin1100110111111…
…00001100000000
321112012100021220
412123330030000
5210121101322
614414315040
72450610660
oct633741400
9245170256
10107987712
1155a57848
12301b8a80
13194ac471
14104b01a0
15973155c
hex66fc300

107987712 has 144 divisors (see below), whose sum is σ = 335543040. Its totient is φ = 30191616.

The previous prime is 107987687. The next prime is 107987713. The reversal of 107987712 is 217789701.

It is a super-2 number, since 2×1079877122 = 23322691885989888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (107987713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284739 + ... + 285117.

It is an arithmetic number, because the mean of its divisors is an integer number (2330160).

Almost surely, 2107987712 is an apocalyptic number.

107987712 is a gapful number since it is divisible by the number (12) 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 107987712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167771520).

107987712 is an abundant number, since it is smaller than the sum of its proper divisors (227555328).

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

107987712 is an equidigital number, since it uses as much as digits as its factorization.

107987712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 42.

The square root of 107987712 is about 10391.7136219201. The cubic root of 107987712 is about 476.2022538090.

The spelling of 107987712 in words is "one hundred seven million, nine hundred eighty-seven thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 53 56 64 84 96 106 112 128 159 168 192 212 224 256 318 336 371 379 384 424 448 636 672 742 758 768 848 896 1113 1137 1272 1344 1484 1516 1696 1792 2226 2274 2544 2653 2688 2968 3032 3392 4452 4548 5088 5306 5376 5936 6064 6784 7959 8904 9096 10176 10612 11872 12128 13568 15918 17808 18192 20087 20352 21224 23744 24256 31836 35616 36384 40174 40704 42448 47488 48512 60261 63672 71232 72768 80348 84896 94976 97024 120522 127344 140609 142464 145536 160696 169792 241044 254688 281218 284928 291072 321392 339584 421827 482088 509376 562436 642784 679168 843654 964176 1018752 1124872 1285568 1687308 1928352 2037504 2249744 2571136 3374616 3856704 4499488 5142272 6749232 7713408 8998976 13498464 15426816 17997952 26996928 35995904 53993856 107987712