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67899068 = 22101168067
BaseRepresentation
bin1000000110000…
…00111010111100
311201202122000022
410003000322330
5114340232233
610423151312
71453063316
oct403007274
9151678008
1067899068
1135366636
121a8a5538
13110b4483
1490367b6
155e63398
hex40c0ebc

67899068 has 12 divisors (see below), whose sum is σ = 120000552. Its totient is φ = 33613200.

The previous prime is 67899061. The next prime is 67899077. The reversal of 67899068 is 86099876.

It is a super-2 number, since 2×678990682 = 9220566870537248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67899061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83630 + ... + 84437.

It is an arithmetic number, because the mean of its divisors is an integer number (10000046).

Almost surely, 267899068 is an apocalyptic number.

It is an amenable number.

67899068 is a deficient number, since it is larger than the sum of its proper divisors (52101484).

67899068 is a wasteful number, since it uses less digits than its factorization.

67899068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168172 (or 168170 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 67899068 is about 8240.0890771884. The cubic root of 67899068 is about 407.9634643050.

The spelling of 67899068 in words is "sixty-seven million, eight hundred ninety-nine thousand, sixty-eight".

Divisors: 1 2 4 101 202 404 168067 336134 672268 16974767 33949534 67899068