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67947730914 = 2372231114731
BaseRepresentation
bin111111010010000000…
…000001011111100010
320111101101122100221110
4333102000001133202
52103124104342124
651114215404150
74623544116600
oct772200013742
9214341570843
1067947730914
11268a87a4a18
1211203683656
13653b1cc14b
143408232870
151b7a376029
hexfd20017e2

67947730914 has 24 divisors (see below), whose sum is σ = 158082476688. Its totient is φ = 19413637320.

The previous prime is 67947730909. The next prime is 67947730937. The reversal of 67947730914 is 41903774976.

It is a super-2 number, since 2×679477309142 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115557072 + ... + 115557659.

It is an arithmetic number, because the mean of its divisors is an integer number (6586769862).

Almost surely, 267947730914 is an apocalyptic number.

67947730914 is an abundant number, since it is smaller than the sum of its proper divisors (90134745774).

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

67947730914 is a wasteful number, since it uses less digits than its factorization.

67947730914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231114750 (or 231114743 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 57.

The spelling of 67947730914 in words is "sixty-seven billion, nine hundred forty-seven million, seven hundred thirty thousand, nine hundred fourteen".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 231114731 462229462 693344193 1386688386 1617803117 3235606234 4853409351 9706818702 11324621819 22649243638 33973865457 67947730914