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13612968 = 23331931107
BaseRepresentation
bin110011111011…
…011110101000
3221121121111000
4303323132220
511441103333
61203435000
7223464645
oct63733650
927547430
1013612968
117758696
124685a60
132a88215
141b44dcc
1512dd713
hexcfb7a8

13612968 has 128 divisors (see below), whose sum is σ = 41472000. Its totient is φ = 4121280.

The previous prime is 13612961. The next prime is 13612979. The reversal of 13612968 is 86921631.

13612968 is a `hidden beast` number, since 1 + 361 + 296 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (15552) is a multiple of the sum of its prime divisors (162).

It is not an unprimeable number, because it can be changed into a prime (13612961) 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, 127171 + ... + 127277.

It is an arithmetic number, because the mean of its divisors is an integer number (324000).

Almost surely, 213612968 is an apocalyptic number.

13612968 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 13612968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20736000).

13612968 is an abundant number, since it is smaller than the sum of its proper divisors (27859032).

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

13612968 is a wasteful number, since it uses less digits than its factorization.

13612968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 162 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 13612968 is about 3689.5755853485. The cubic root of 13612968 is about 238.7724823725.

The spelling of 13612968 in words is "thirteen million, six hundred twelve thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 27 31 36 38 54 57 62 72 76 93 107 108 114 124 152 171 186 214 216 228 248 279 321 342 372 428 456 513 558 589 642 684 744 837 856 963 1026 1116 1178 1284 1368 1674 1767 1926 2033 2052 2232 2356 2568 2889 3317 3348 3534 3852 4066 4104 4712 5301 5778 6099 6634 6696 7068 7704 8132 9951 10602 11556 12198 13268 14136 15903 16264 18297 19902 21204 23112 24396 26536 29853 31806 36594 39804 42408 48792 54891 59706 63023 63612 73188 79608 89559 109782 119412 126046 127224 146376 179118 189069 219564 238824 252092 358236 378138 439128 504184 567207 716472 756276 1134414 1512552 1701621 2268828 3403242 4537656 6806484 13612968