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122018940732 = 22313782172697
BaseRepresentation
bin111000110100011100…
…1010100011100111100
3102122221201011102112010
41301220321110130330
53444343322100412
6132015453211220
711546512611663
oct1615071243474
9378851142463
10122018940732
1147825569187
121b793a90b10
13b677563960
145c97531dda
15329235a33c
hex1c68e5473c

122018940732 has 24 divisors (see below), whose sum is σ = 306611697616. Its totient is φ = 37544289408.

The previous prime is 122018940679. The next prime is 122018940737. The reversal of 122018940732 is 237049810221.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122018940737) 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, 391086193 + ... + 391086504.

Almost surely, 2122018940732 is an apocalyptic number.

122018940732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122018940732 is an abundant number, since it is smaller than the sum of its proper divisors (184592756884).

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

122018940732 is a wasteful number, since it uses less digits than its factorization.

122018940732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782172717 (or 782172715 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 122018940732 in words is "one hundred twenty-two billion, eighteen million, nine hundred forty thousand, seven hundred thirty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 782172697 1564345394 2346518091 3128690788 4693036182 9386072364 10168245061 20336490122 30504735183 40672980244 61009470366 122018940732