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108631120 = 24513671559
BaseRepresentation
bin1100111100110…
…01010001010000
321120102000212211
412132121101100
5210302143440
614440201504
72456230543
oct636312120
9246360784
10108631120
1156357194
1230469294
1319676290
14105da85a
15980beea
hex6799450

108631120 has 80 divisors (see below), whose sum is σ = 276232320. Its totient is φ = 39485952.

The previous prime is 108631109. The next prime is 108631123. The reversal of 108631120 is 21136801.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 108631091 and 108631100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108631123) 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, 68901 + ... + 70459.

It is an arithmetic number, because the mean of its divisors is an integer number (3452904).

Almost surely, 2108631120 is an apocalyptic number.

108631120 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 108631120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138116160).

108631120 is an abundant number, since it is smaller than the sum of its proper divisors (167601200).

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

108631120 is a wasteful number, since it uses less digits than its factorization.

108631120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 108631120 is about 10422.6253890275. The cubic root of 108631120 is about 477.1461446427.

Adding to 108631120 its reverse (21136801), we get a palindrome (129767921).

The spelling of 108631120 in words is "one hundred eight million, six hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 67 80 104 130 134 208 260 268 335 520 536 670 871 1040 1072 1340 1559 1742 2680 3118 3484 4355 5360 6236 6968 7795 8710 12472 13936 15590 17420 20267 24944 31180 34840 40534 62360 69680 81068 101335 104453 124720 162136 202670 208906 324272 405340 417812 522265 810680 835624 1044530 1357889 1621360 1671248 2089060 2715778 4178120 5431556 6789445 8356240 10863112 13578890 21726224 27157780 54315560 108631120