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67796145 = 32510314627
BaseRepresentation
bin1000000101001…
…11110010110001
311201120101211100
410002213302301
5114323434040
610421035013
71452154254
oct402476261
9151511740
1067796145
11352a627a
121a855a69
1311079681
14900b09b
155e42b30
hex40a7cb1

67796145 has 24 divisors (see below), whose sum is σ = 118662336. Its totient is φ = 35804448.

The previous prime is 67796129. The next prime is 67796159. The reversal of 67796145 is 54169776.

It is a happy number.

It is not a de Polignac number, because 67796145 - 24 = 67796129 is a prime.

It is a super-2 number, since 2×677961452 = 9192634553722050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 67796145.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2679 + ... + 11948.

It is an arithmetic number, because the mean of its divisors is an integer number (4944264).

Almost surely, 267796145 is an apocalyptic number.

It is an amenable number.

67796145 is a deficient number, since it is larger than the sum of its proper divisors (50866191).

67796145 is a wasteful number, since it uses less digits than its factorization.

67796145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14741 (or 14738 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 67796145 is about 8233.8414485585. The cubic root of 67796145 is about 407.7572265335.

The spelling of 67796145 in words is "sixty-seven million, seven hundred ninety-six thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 45 103 309 515 927 1545 4635 14627 43881 73135 131643 219405 658215 1506581 4519743 7532905 13559229 22598715 67796145