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67940468583 = 3132134004869
BaseRepresentation
bin111111010001100100…
…010100011101100111
320111100212222101220020
4333101210110131213
52103120224443313
651113400010223
74623425311611
oct772144243547
9214325871806
1067940468583
11268a4694699
1211201160973
136539858700
1434072a1db1
151b798de323
hexfd1914767

67940468583 has 12 divisors (see below), whose sum is σ = 98091564840. Its totient is φ = 41809518816.

The previous prime is 67940468579. The next prime is 67940468611. The reversal of 67940468583 is 38586404976.

It is not a de Polignac number, because 67940468583 - 22 = 67940468579 is a prime.

It is a super-2 number, since 2×679404685832 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67940468383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67001928 + ... + 67002941.

It is an arithmetic number, because the mean of its divisors is an integer number (8174297070).

Almost surely, 267940468583 is an apocalyptic number.

67940468583 is a deficient number, since it is larger than the sum of its proper divisors (30151096257).

67940468583 is a wasteful number, since it uses less digits than its factorization.

67940468583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134004898 (or 134004885 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 60.

The spelling of 67940468583 in words is "sixty-seven billion, nine hundred forty million, four hundred sixty-eight thousand, five hundred eighty-three".

Divisors: 1 3 13 39 169 507 134004869 402014607 1742063297 5226189891 22646822861 67940468583