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2151241004000 = 2553111091572857
BaseRepresentation
bin11111010011011111111…
…101001011001111100000
321121122201200110220021202
4133103133331023033200
5240221220144112000
64324133320340332
7311264520553544
oct37233775131740
97548650426252
102151241004000
1175a377511680
122a8b123146a8
13127b26c6380a
1476198da5a24
153ae5a9e6dd5
hex1f4dff4b3e0

2151241004000 has 384 divisors, whose sum is σ = 5858121709440. Its totient is φ = 769886208000.

The previous prime is 2151241003931. The next prime is 2151241004023. The reversal of 2151241004000 is 4001421512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 752970572 + ... + 752973428.

It is an arithmetic number, because the mean of its divisors is an integer number (15255525285).

Almost surely, 22151241004000 is an apocalyptic number.

2151241004000 is a gapful number since it is divisible by the number (20) 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 2151241004000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2929060854720).

2151241004000 is an abundant number, since it is smaller than the sum of its proper divisors (3706880705440).

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

2151241004000 is a wasteful number, since it uses less digits than its factorization.

2151241004000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159 (or 3141 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 2151241004000 its reverse (4001421512), we get a palindrome (2155242425512).

The spelling of 2151241004000 in words is "two trillion, one hundred fifty-one billion, two hundred forty-one million, four thousand".