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65351968 = 25113153113
BaseRepresentation
bin1111100101001…
…1000100100000
311112222020001021
43321103010200
5113212230333
610252415224
71422324343
oct371230440
9145866037
1065351968
11339869a0
1219a77514
1310702006
14897245a
155b0d82d
hex3e53120

65351968 has 96 divisors (see below), whose sum is σ = 148925952. Its totient is φ = 27955200.

The previous prime is 65351941. The next prime is 65351971. The reversal of 65351968 is 86915356.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578280 + ... + 578392.

It is an arithmetic number, because the mean of its divisors is an integer number (1551312).

Almost surely, 265351968 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 65351968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74462976).

65351968 is an abundant number, since it is smaller than the sum of its proper divisors (83573984).

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

65351968 is a wasteful number, since it uses less digits than its factorization.

65351968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 210 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 65351968 is about 8084.0564075222. The cubic root of 65351968 is about 402.7969964410.

The spelling of 65351968 in words is "sixty-five million, three hundred fifty-one thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 16 22 31 32 44 53 62 88 106 113 124 176 212 226 248 341 352 424 452 496 583 682 848 904 992 1166 1243 1364 1643 1696 1808 2332 2486 2728 3286 3503 3616 4664 4972 5456 5989 6572 7006 9328 9944 10912 11978 13144 14012 18073 18656 19888 23956 26288 28024 36146 38533 39776 47912 52576 56048 65879 72292 77066 95824 112096 131758 144584 154132 185659 191648 263516 289168 308264 371318 527032 578336 616528 742636 1054064 1233056 1485272 2042249 2108128 2970544 4084498 5941088 8168996 16337992 32675984 65351968