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67630339 = 7337732
BaseRepresentation
bin1000000011111…
…11010100000011
311201020222101101
410001333110003
5114303132324
610413315231
71450564000
oct401772403
9151228341
1067630339
11351a2747
121a795b17
131101c06a
148da68a7
155e0d944
hex407f503

67630339 has 24 divisors (see below), whose sum is σ = 82125600. Its totient is φ = 55629504.

The previous prime is 67630331. The next prime is 67630351. The reversal of 67630339 is 93303676.

It is not a de Polignac number, because 67630339 - 23 = 67630331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67630298 and 67630307.

It is not an unprimeable number, because it can be changed into a prime (67630331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 926407 + ... + 926479.

It is an arithmetic number, because the mean of its divisors is an integer number (3421900).

Almost surely, 267630339 is an apocalyptic number.

67630339 is a deficient number, since it is larger than the sum of its proper divisors (14495261).

67630339 is an frugal number, since it uses more digits than its factorization.

67630339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 37.

The square root of 67630339 is about 8223.7667160493. The cubic root of 67630339 is about 407.4245439723.

The spelling of 67630339 in words is "sixty-seven million, six hundred thirty thousand, three hundred thirty-nine".

Divisors: 1 7 37 49 73 259 343 511 1813 2701 3577 5329 12691 18907 25039 37303 132349 197173 261121 926443 1380211 1827847 9661477 67630339