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69687045120 = 2103571158921
BaseRepresentation
bin100000011100110101…
…0111110110000000000
320122212121110200111010
41000321222332300000
52120204340420440
652002551120520
75014624052520
oct1007152766000
9218777420433
1069687045120
112761057a480
121160a073140
136757662054
14353122d680
151c2cde3580
hex1039abec00

69687045120 has 352 divisors, whose sum is σ = 277893121536. Its totient is φ = 14480179200.

The previous prime is 69687045091. The next prime is 69687045139. The reversal of 69687045120 is 2154078696.

It is a tau number, because it is divible by the number of its divisors (352).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 69687045120.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1153260 + ... + 1212180.

Almost surely, 269687045120 is an apocalyptic number.

69687045120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69687045120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138946560768).

69687045120 is an abundant number, since it is smaller than the sum of its proper divisors (208206076416).

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

69687045120 is a wasteful number, since it uses less digits than its factorization.

69687045120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58967 (or 58949 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 69687045120 in words is "sixty-nine billion, six hundred eighty-seven million, forty-five thousand, one hundred twenty".