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68157294 = 23195471093
BaseRepresentation
bin1000000111111…
…11111101101110
311202020202020020
410003333331232
5114422013134
610432503010
71455220212
oct403777556
9152222206
1068157294
1135522647
121a9aaa66
1311174b7a
1490a2942
155eb4b49
hex40fff6e

68157294 has 32 divisors (see below), whose sum is σ = 143882880. Its totient is φ = 21464352.

The previous prime is 68157281. The next prime is 68157307. The reversal of 68157294 is 49275186.

It is an interprime number because it is at equal distance from previous prime (68157281) and next prime (68157307).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61812 + ... + 62904.

It is an arithmetic number, because the mean of its divisors is an integer number (4496340).

Almost surely, 268157294 is an apocalyptic number.

68157294 is an abundant number, since it is smaller than the sum of its proper divisors (75725586).

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

68157294 is a wasteful number, since it uses less digits than its factorization.

68157294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664.

The product of its digits is 120960, while the sum is 42.

The square root of 68157294 is about 8255.7430919330. The cubic root of 68157294 is about 408.4799834584.

It can be divided in two parts, 681 and 57294, that added together give a palindrome (57975).

The spelling of 68157294 in words is "sixty-eight million, one hundred fifty-seven thousand, two hundred ninety-four".

Divisors: 1 2 3 6 19 38 57 114 547 1093 1094 1641 2186 3279 3282 6558 10393 20767 20786 31179 41534 62301 62358 124602 597871 1195742 1793613 3587226 11359549 22719098 34078647 68157294