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67663607 = 1131198427
BaseRepresentation
bin1000000100001…
…11011011110111
311201022200000112
410002013123313
5114310213412
610414133235
71451062664
oct402073367
9151280015
1067663607
1135215740
121a7b121b
131103124b
148db4a6b
155e18722
hex40876f7

67663607 has 8 divisors (see below), whose sum is σ = 76196352. Its totient is φ = 59527800.

The previous prime is 67663601. The next prime is 67663613. The reversal of 67663607 is 70636676.

It is an interprime number because it is at equal distance from previous prime (67663601) and next prime (67663613).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67663607 - 210 = 67662583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67663601) 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, 98873 + ... + 99554.

It is an arithmetic number, because the mean of its divisors is an integer number (9524544).

Almost surely, 267663607 is an apocalyptic number.

67663607 is a deficient number, since it is larger than the sum of its proper divisors (8532745).

67663607 is a wasteful number, since it uses less digits than its factorization.

67663607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198469.

The product of its (nonzero) digits is 190512, while the sum is 41.

The square root of 67663607 is about 8225.7891414745. The cubic root of 67663607 is about 407.4913383432.

The spelling of 67663607 in words is "sixty-seven million, six hundred sixty-three thousand, six hundred seven".

Divisors: 1 11 31 341 198427 2182697 6151237 67663607