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68261323 = 135250871
BaseRepresentation
bin1000001000110…
…01010111001011
311202110000221011
410010121113023
5114433330243
610435024351
71456132414
oct404312713
9152400834
1068261323
1135593819
121aa3b0b7
13111b0320
1490cc80b
155ed589d
hex41195cb

68261323 has 4 divisors (see below), whose sum is σ = 73512208. Its totient is φ = 63010440.

The previous prime is 68261321. The next prime is 68261353. The reversal of 68261323 is 32316286.

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 68261323 - 21 = 68261321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68261321) 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, 2625423 + ... + 2625448.

It is an arithmetic number, because the mean of its divisors is an integer number (18378052).

Almost surely, 268261323 is an apocalyptic number.

68261323 is a deficient number, since it is larger than the sum of its proper divisors (5250885).

68261323 is a wasteful number, since it uses less digits than its factorization.

68261323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250884.

The product of its digits is 10368, while the sum is 31.

The square root of 68261323 is about 8262.0410916432. The cubic root of 68261323 is about 408.6876998572.

The spelling of 68261323 in words is "sixty-eight million, two hundred sixty-one thousand, three hundred twenty-three".

Divisors: 1 13 5250871 68261323