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68872822 = 21131931579
BaseRepresentation
bin1000001101011…
…10101001110110
311210121002202021
410012232221312
5120112412242
610500103354
71464260254
oct406565166
9153532667
1068872822
1135971197
121b094b5a
1311365765
14920b5d4
1560a6b67
hex41aea76

68872822 has 16 divisors (see below), whose sum is σ = 104829840. Its totient is φ = 33933312.

The previous prime is 68872807. The next prime is 68872823. The reversal of 68872822 is 22827886.

It is a super-2 number, since 2×688728222 = 9486931220487368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68872823) 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, 42829 + ... + 44407.

It is an arithmetic number, because the mean of its divisors is an integer number (6551865).

Almost surely, 268872822 is an apocalyptic number.

68872822 is a deficient number, since it is larger than the sum of its proper divisors (35957018).

68872822 is a wasteful number, since it uses less digits than its factorization.

68872822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887.

The product of its digits is 172032, while the sum is 43.

The square root of 68872822 is about 8298.9651162058. The cubic root of 68872822 is about 409.9044433267.

The spelling of 68872822 in words is "sixty-eight million, eight hundred seventy-two thousand, eight hundred twenty-two".

Divisors: 1 2 113 193 226 386 1579 3158 21809 43618 178427 304747 356854 609494 34436411 68872822