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67920318702 = 2323773351039
BaseRepresentation
bin111111010000010111…
…011101000011101110
320111022111001200110100
4333100113131003232
52103100100144302
651111400051530
74623062116605
oct772027350356
9214274050410
1067920318702
11268942817a5
12111b6463ba6
136535621cc2
143404738a3c
151b77c5dd1c
hexfd05dd0ee

67920318702 has 12 divisors (see below), whose sum is σ = 147160690560. Its totient is φ = 22640106228.

The previous prime is 67920318593. The next prime is 67920318727. The reversal of 67920318702 is 20781302976.

It is a super-2 number, since 2×679203187022 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1886675502 + ... + 1886675537.

It is an arithmetic number, because the mean of its divisors is an integer number (12263390880).

Almost surely, 267920318702 is an apocalyptic number.

67920318702 is an abundant number, since it is smaller than the sum of its proper divisors (79240371858).

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

67920318702 is a wasteful number, since it uses less digits than its factorization.

67920318702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773351047 (or 3773351044 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 67920318702 in words is "sixty-seven billion, nine hundred twenty million, three hundred eighteen thousand, seven hundred two".

Divisors: 1 2 3 6 9 18 3773351039 7546702078 11320053117 22640106234 33960159351 67920318702