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68812275 = 3527131071
BaseRepresentation
bin1000001100111…
…11110111110011
311210111000200210
410012133313303
5120103443100
610454515203
71463615610
oct406376763
9153430623
1068812275
113592a754
121b065b03
131134402c
1491d3507
156093c50
hex419fdf3

68812275 has 24 divisors (see below), whose sum is σ = 130023424. Its totient is φ = 31456800.

The previous prime is 68812259. The next prime is 68812291. The reversal of 68812275 is 57221886.

It is an interprime number because it is at equal distance from previous prime (68812259) and next prime (68812291).

It is not a de Polignac number, because 68812275 - 24 = 68812259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65011 + ... + 66060.

Almost surely, 268812275 is an apocalyptic number.

68812275 is a deficient number, since it is larger than the sum of its proper divisors (61211149).

68812275 is a wasteful number, since it uses less digits than its factorization.

68812275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131091 (or 131086 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 68812275 is about 8295.3164496600. The cubic root of 68812275 is about 409.7842906554.

The spelling of 68812275 in words is "sixty-eight million, eight hundred twelve thousand, two hundred seventy-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 131071 393213 655355 917497 1966065 2752491 3276775 4587485 9830325 13762455 22937425 68812275