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68889195 = 3251530871
BaseRepresentation
bin1000001101100…
…10101001101011
311210121221012200
410012302221223
5120113423240
610500311243
71464356064
oct406625153
9153557180
1068889195
1135982521
121b0a2523
131137004b
14921356b
1560ab930
hex41b2a6b

68889195 has 12 divisors (see below), whose sum is σ = 119408016. Its totient is φ = 36740880.

The previous prime is 68889187. The next prime is 68889211. The reversal of 68889195 is 59198886.

It is not a de Polignac number, because 68889195 - 23 = 68889187 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 765391 + ... + 765480.

It is an arithmetic number, because the mean of its divisors is an integer number (9950668).

Almost surely, 268889195 is an apocalyptic number.

68889195 is a deficient number, since it is larger than the sum of its proper divisors (50518821).

68889195 is a wasteful number, since it uses less digits than its factorization.

68889195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530882 (or 1530879 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 68889195 is about 8299.9515058824. The cubic root of 68889195 is about 409.9369226778.

The spelling of 68889195 in words is "sixty-eight million, eight hundred eighty-nine thousand, one hundred ninety-five".

Divisors: 1 3 5 9 15 45 1530871 4592613 7654355 13777839 22963065 68889195