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67930998 = 2317236571
BaseRepresentation
bin1000000110010…
…00101101110110
311201211020210220
410003020231312
5114342242443
610423555210
71453255362
oct403105566
9151736726
1067930998
1135388623
121a8bbb06
13110c5b75
1490442a2
155e6ca83
hex40c8b76

67930998 has 16 divisors (see below), whose sum is σ = 135961536. Its totient is φ = 22627080.

The previous prime is 67930991. The next prime is 67930999. The reversal of 67930998 is 89903976.

It is a super-2 number, since 2×679309982 = 9229240978552008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67930998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67930991) 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, 7053 + ... + 13623.

It is an arithmetic number, because the mean of its divisors is an integer number (8497596).

Almost surely, 267930998 is an apocalyptic number.

67930998 is an abundant number, since it is smaller than the sum of its proper divisors (68030538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67930998 is a wasteful number, since it uses less digits than its factorization.

67930998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8299.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 67930998 is about 8242.0263285190. The cubic root of 67930998 is about 408.0274034843.

The spelling of 67930998 in words is "sixty-seven million, nine hundred thirty thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 1723 3446 5169 6571 10338 13142 19713 39426 11321833 22643666 33965499 67930998