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2152562500 = 22561131101
BaseRepresentation
bin1000000001001101…
…0111111101000100
312120000102111122001
42000103113331010
513402024000000
6553332515044
7104225323264
oct20023277504
95500374561
102152562500
11a0507a080
12500a7ba84
13283c6272a
14165c4d7a4
15c8e9b46a
hex804d7f44

2152562500 has 168 divisors, whose sum is σ = 5354931456. Its totient is φ = 750000000.

The previous prime is 2152562471. The next prime is 2152562507. The reversal of 2152562500 is 52652512.

It is not an unprimeable number, because it can be changed into a prime (2152562507) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 21312450 + ... + 21312550.

It is an arithmetic number, because the mean of its divisors is an integer number (31874592).

Almost surely, 22152562500 is an apocalyptic number.

2152562500 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 2152562500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2677465728).

2152562500 is an abundant number, since it is smaller than the sum of its proper divisors (3202368956).

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

2152562500 is a wasteful number, since it uses less digits than its factorization.

2152562500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2152562500 is about 46395.7163970986. The cubic root of 2152562500 is about 1291.1754404484.

The spelling of 2152562500 in words is "two billion, one hundred fifty-two million, five hundred sixty-two thousand, five hundred".