Search a number
-
+
13668086952 = 23321327315347
BaseRepresentation
bin11001011101010111…
…00111010010101000
31022021112220202110200
430232223213102220
5210443012240302
610140134312200
7662464552002
oct145653472250
938245822420
1013668086952
115884308033
1227954b8660
13139a919420
14939397372
1554ee1d81c
hex32eae74a8

13668086952 has 96 divisors (see below), whose sum is σ = 39887309280. Its totient is φ = 4203239040.

The previous prime is 13668086951. The next prime is 13668086963. The reversal of 13668086952 is 25968086631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13668086951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2553543 + ... + 2558889.

It is an arithmetic number, because the mean of its divisors is an integer number (415492805).

Almost surely, 213668086952 is an apocalyptic number.

13668086952 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 13668086952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19943654640).

13668086952 is an abundant number, since it is smaller than the sum of its proper divisors (26219222328).

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

13668086952 is a wasteful number, since it uses less digits than its factorization.

13668086952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8103 (or 8096 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 13668086952 in words is "thirteen billion, six hundred sixty-eight million, eighty-six thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 2731 5347 5462 8193 10694 10924 16041 16386 21388 21848 24579 32082 32772 35503 42776 48123 49158 64164 65544 69511 71006 96246 98316 106509 128328 139022 142012 192492 196632 208533 213018 278044 284024 319527 384984 417066 426036 556088 625599 639054 834132 852072 1251198 1278108 1668264 2502396 2556216 5004792 14602657 29205314 43807971 58410628 87615942 116821256 131423913 175231884 189834541 262847826 350463768 379669082 525695652 569503623 759338164 1051391304 1139007246 1518676328 1708510869 2278014492 3417021738 4556028984 6834043476 13668086952