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68632492 = 2217158123
BaseRepresentation
bin1000001011100…
…11111110101100
311210010220002011
410011303332230
5120032214432
610451011004
71462236505
oct405637654
9153126064
1068632492
1135817675
121ab99a64
13112b0256
149187bac
15605a847
hex4173fac

68632492 has 6 divisors (see below), whose sum is σ = 120106868. Its totient is φ = 34316244.

The previous prime is 68632489. The next prime is 68632493. The reversal of 68632492 is 29423686.

It is a super-4 number, since 4×686324924 (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (68632493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8579058 + ... + 8579065.

Almost surely, 268632492 is an apocalyptic number.

It is an amenable number.

68632492 is a deficient number, since it is larger than the sum of its proper divisors (51474376).

68632492 is a wasteful number, since it uses less digits than its factorization.

68632492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17158127 (or 17158125 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 68632492 is about 8284.4729464221. The cubic root of 68632492 is about 409.4271038861.

The spelling of 68632492 in words is "sixty-eight million, six hundred thirty-two thousand, four hundred ninety-two".

Divisors: 1 2 4 17158123 34316246 68632492