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2152634880 = 29351183307
BaseRepresentation
bin1000000001001110…
…1001101000000000
312120000120011220210
42000103221220000
513402033304010
6553334234120
7104226044304
oct20023515000
95500504823
102152634880
11a051194a0
12500ab5940
13283c89666
14165c6bd04
15c8eb2b20
hex804e9a00

2152634880 has 320 divisors, whose sum is σ = 7622512128. Its totient is φ = 513884160.

The previous prime is 2152634879. The next prime is 2152634923. The reversal of 2152634880 is 884362512.

It is a tau number, because it is divible by the number of its divisors (320).

It is a super-2 number, since 2×21526348802 = 9267673853185228800, which contains 22 as substring.

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, 7011687 + ... + 7011993.

Almost surely, 22152634880 is an apocalyptic number.

2152634880 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 2152634880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3811256064).

2152634880 is an abundant number, since it is smaller than the sum of its proper divisors (5469877248).

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

2152634880 is a wasteful number, since it uses less digits than its factorization.

2152634880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 2152634880 is about 46396.4964194496. The cubic root of 2152634880 is about 1291.1899122282.

The spelling of 2152634880 in words is "two billion, one hundred fifty-two million, six hundred thirty-four thousand, eight hundred eighty".