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68029623 = 3271910513
BaseRepresentation
bin1000000111000…
…00110010110111
311202000021002200
410003200302313
5114403421443
610430035543
71454146044
oct403406267
9152007080
1068029623
1135445732
121a948bb3
131112ba1c
14906c1cb
155e8bdd3
hex40e0cb7

68029623 has 12 divisors (see below), whose sum is σ = 98411040. Its totient is φ = 45285696.

The previous prime is 68029603. The next prime is 68029627. The reversal of 68029623 is 32692086.

68029623 is a `hidden beast` number, since 6 + 8 + 0 + 29 + 623 = 666.

It is not a de Polignac number, because 68029623 - 29 = 68029111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68029627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1215 + ... + 11727.

It is an arithmetic number, because the mean of its divisors is an integer number (8200920).

Almost surely, 268029623 is an apocalyptic number.

68029623 is a deficient number, since it is larger than the sum of its proper divisors (30381417).

68029623 is a wasteful number, since it uses less digits than its factorization.

68029623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11238 (or 11235 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 68029623 is about 8248.0072138669. The cubic root of 68029623 is about 408.2247716210.

It can be divided in two parts, 680 and 29623, that added together give a palindrome (30303).

The spelling of 68029623 in words is "sixty-eight million, twenty-nine thousand, six hundred twenty-three".

Divisors: 1 3 9 719 2157 6471 10513 31539 94617 7558847 22676541 68029623