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67245308220 = 22351120755137
BaseRepresentation
bin111110101000001000…
…011111100100111100
320102120102220121011010
4332220020133210330
52100204244330340
650520404155220
74600254455166
oct765010374474
9212512817133
1067245308220
11265782503a2
1211048398b10
13645882210c
14337cc27936
151b38875b80
hexfa821f93c

67245308220 has 24 divisors (see below), whose sum is σ = 188286863184. Its totient is φ = 17932082176.

The previous prime is 67245308213. The next prime is 67245308237. The reversal of 67245308220 is 2280354276.

It is a congruent number.

It is an unprimeable number.

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, 560377509 + ... + 560377628.

It is an arithmetic number, because the mean of its divisors is an integer number (7845285966).

Almost surely, 267245308220 is an apocalyptic number.

67245308220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67245308220 is an abundant number, since it is smaller than the sum of its proper divisors (121041554964).

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

67245308220 is a wasteful number, since it uses less digits than its factorization.

67245308220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120755149 (or 1120755147 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 67245308220 in words is "sixty-seven billion, two hundred forty-five million, three hundred eight thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1120755137 2241510274 3362265411 4483020548 5603775685 6724530822 11207551370 13449061644 16811327055 22415102740 33622654110 67245308220