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109153668 = 223131779521
BaseRepresentation
bin1101000000110…
…00110110000100
321121101120200110
412200120312010
5210420404133
614455313020
72463535161
oct640306604
9247346613
10109153668
1156683848
123067b770
13197ca090
14106d5068
1598b1c63
hex6818d84

109153668 has 96 divisors (see below), whose sum is σ = 294658560. Its totient is φ = 31150080.

The previous prime is 109153661. The next prime is 109153669. The reversal of 109153668 is 866351901.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (109153661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209248 + ... + 209768.

It is an arithmetic number, because the mean of its divisors is an integer number (3069360).

Almost surely, 2109153668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109153668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147329280).

109153668 is an abundant number, since it is smaller than the sum of its proper divisors (185504892).

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

109153668 is a wasteful number, since it uses less digits than its factorization.

109153668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 109153668 is about 10447.6632794132. The cubic root of 109153668 is about 477.9099927981.

The spelling of 109153668 in words is "one hundred nine million, one hundred fifty-three thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 17 26 34 39 51 52 68 78 79 102 156 158 204 221 237 316 442 474 521 663 884 948 1027 1042 1326 1343 1563 2054 2084 2652 2686 3081 3126 4029 4108 5372 6162 6252 6773 8058 8857 12324 13546 16116 17459 17714 20319 26571 27092 34918 35428 40638 41159 52377 53142 69836 81276 82318 104754 106284 115141 123477 164636 209508 230282 246954 345423 460564 493908 535067 690846 699703 1070134 1381692 1399406 1605201 2099109 2140268 2798812 3210402 4198218 6420804 8396436 9096139 18192278 27288417 36384556 54576834 109153668