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67070669 = 435926437
BaseRepresentation
bin1111111111011…
…0101011001101
311200012112122212
43333312223031
5114132230134
610353320205
71443043211
oct377665315
9150175585
1067070669
1134950206
121a566065
1310b843b3
148c9c941
155d4cbce
hex3ff6acd

67070669 has 8 divisors (see below), whose sum is σ = 69796320. Its totient is φ = 64398096.

The previous prime is 67070623. The next prime is 67070671. The reversal of 67070669 is 96607076.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-67070669 is a prime.

It is a super-2 number, since 2×670706692 = 8996949280215122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67070699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10682 + ... + 15755.

It is an arithmetic number, because the mean of its divisors is an integer number (8724540).

Almost surely, 267070669 is an apocalyptic number.

It is an amenable number.

67070669 is a deficient number, since it is larger than the sum of its proper divisors (2725651).

67070669 is a wasteful number, since it uses less digits than its factorization.

67070669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26539.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 67070669 is about 8189.6684304067. The cubic root of 67070669 is about 406.2975586452.

The spelling of 67070669 in words is "sixty-seven million, seventy thousand, six hundred sixty-nine".

Divisors: 1 43 59 2537 26437 1136791 1559783 67070669