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2159689900032 = 213347464963
BaseRepresentation
bin11111011011010111100…
…011001010000000000000
321122110112111120021210000
4133123113203022000000
5240341021103300112
64332051533440000
7312014062154520
oct37332743120000
97573474507700
102159689900032
11762a12711285
122aa68b940000
131288724a7c92
147675b121680
153b2a26137dc
hex1f6d78ca000

2159689900032 has 280 divisors, whose sum is σ = 7373745045216. Its totient is φ = 617052930048.

The previous prime is 2159689900019. The next prime is 2159689900073. The reversal of 2159689900032 is 2300099869512.

It is a happy number.

It is a super-5 number, since 5×21596899000325 (a number of 63 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4412383 + ... + 4877345.

Almost surely, 22159689900032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2159689900032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3686872522608).

2159689900032 is an abundant number, since it is smaller than the sum of its proper divisors (5214055145184).

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

2159689900032 is an frugal number, since it uses more digits than its factorization.

2159689900032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465008 (or 464975 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 2159689900032 in words is "two trillion, one hundred fifty-nine billion, six hundred eighty-nine million, nine hundred thousand, thirty-two".