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68739297 = 3112083009
BaseRepresentation
bin1000001100011…
…10000011100001
311210100022120220
410012032003201
5120044124142
610453153253
71463163054
oct406160341
9153308526
1068739297
113588a940
121b02b829
1311319a53
1491b4a9b
15607c2ec
hex418e0e1

68739297 has 8 divisors (see below), whose sum is σ = 99984480. Its totient is φ = 41660160.

The previous prime is 68739271. The next prime is 68739311. The reversal of 68739297 is 79293786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68739297 - 26 = 68739233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68739217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1041472 + ... + 1041537.

It is an arithmetic number, because the mean of its divisors is an integer number (12498060).

Almost surely, 268739297 is an apocalyptic number.

It is an amenable number.

68739297 is a deficient number, since it is larger than the sum of its proper divisors (31245183).

68739297 is a wasteful number, since it uses less digits than its factorization.

68739297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083023.

The product of its digits is 1143072, while the sum is 51.

The square root of 68739297 is about 8290.9165355828. The cubic root of 68739297 is about 409.6393755411.

The spelling of 68739297 in words is "sixty-eight million, seven hundred thirty-nine thousand, two hundred ninety-seven".

Divisors: 1 3 11 33 2083009 6249027 22913099 68739297