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68037379 = 491138569
BaseRepresentation
bin1000000111000…
…10101100000011
311202000122201221
410003202230003
5114404144004
610430135511
71454210464
oct403425403
9152018657
1068037379
1135450543
121a951597
1311132407
149070d6b
155e8e354
hex40e2b03

68037379 has 4 divisors (see below), whose sum is σ = 68176440. Its totient is φ = 67898320.

The previous prime is 68037373. The next prime is 68037397. The reversal of 68037379 is 97373086.

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

It is a cyclic number.

It is not a de Polignac number, because 68037379 - 27 = 68037251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68037373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68794 + ... + 69775.

It is an arithmetic number, because the mean of its divisors is an integer number (17044110).

Almost surely, 268037379 is an apocalyptic number.

68037379 is a deficient number, since it is larger than the sum of its proper divisors (139061).

68037379 is a wasteful number, since it uses less digits than its factorization.

68037379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139060.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 68037379 is about 8248.4773746432. The cubic root of 68037379 is about 408.2402848189.

The spelling of 68037379 in words is "sixty-eight million, thirty-seven thousand, three hundred seventy-nine".

Divisors: 1 491 138569 68037379