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107117028 = 223231531811
BaseRepresentation
bin1100110001001…
…11100111100100
321110120002221100
412120213213210
5204410221103
614343520100
72440323354
oct630474744
9243502840
10107117028
1155512677
122ba59030
1319266075
1410324b64
15960d5a3
hex66279e4

107117028 has 72 divisors (see below), whose sum is σ = 284933376. Its totient is φ = 33883200.

The previous prime is 107116993. The next prime is 107117047. The reversal of 107117028 is 820711701.

It is a super-2 number, since 2×1071170282 = 22948115375105568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 107116992 and 107117010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58243 + ... + 60053.

It is an arithmetic number, because the mean of its divisors is an integer number (3957408).

Almost surely, 2107117028 is an apocalyptic number.

107117028 is a gapful number since it is divisible by the number (18) 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 107117028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142466688).

107117028 is an abundant number, since it is smaller than the sum of its proper divisors (177816348).

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

107117028 is a wasteful number, since it uses less digits than its factorization.

107117028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905 (or 1900 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

The square root of 107117028 is about 10349.7356487980. The cubic root of 107117028 is about 474.9189564411.

Adding to 107117028 its reverse (820711701), we get a palindrome (927828729).

The spelling of 107117028 in words is "one hundred seven million, one hundred seventeen thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 31 36 53 62 93 106 124 159 186 212 279 318 372 477 558 636 954 1116 1643 1811 1908 3286 3622 4929 5433 6572 7244 9858 10866 14787 16299 19716 21732 29574 32598 56141 59148 65196 95983 112282 168423 191966 224564 287949 336846 383932 505269 575898 673692 863847 1010538 1151796 1727694 2021076 2975473 3455388 5950946 8926419 11901892 17852838 26779257 35705676 53558514 107117028