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68790914 = 234395457
BaseRepresentation
bin1000001100110…
…10101010000010
311210102221101122
410012122222002
5120102302124
610454232242
71463466413
oct406325202
9153387348
1068790914
11359156a5
121b055682
13113373aa
1491c980a
15608c75e
hex419aa82

68790914 has 4 divisors (see below), whose sum is σ = 103186374. Its totient is φ = 34395456.

The previous prime is 68790901. The next prime is 68790923. The reversal of 68790914 is 41909786.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61858225 + 6932689 = 7865^2 + 2633^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17197727 + ... + 17197730.

Almost surely, 268790914 is an apocalyptic number.

68790914 is a deficient number, since it is larger than the sum of its proper divisors (34395460).

68790914 is a wasteful number, since it uses less digits than its factorization.

68790914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34395459.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 68790914 is about 8294.0288159615. The cubic root of 68790914 is about 409.7418839377.

The spelling of 68790914 in words is "sixty-eight million, seven hundred ninety thousand, nine hundred fourteen".

Divisors: 1 2 34395457 68790914