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2831152128 = 21037312137
BaseRepresentation
bin1010100010111111…
…1111010000000000
321022022022102121020
42220233333100000
521244233332003
61144533225440
7130105252560
oct25057772000
97268272536
102831152128
111223125552
12670192280
1336171675c
141cc012da0
1511883ed53
hexa8bff400

2831152128 has 264 divisors, whose sum is σ = 8976275136. Its totient is φ = 777093120.

The previous prime is 2831152123. The next prime is 2831152187. The reversal of 2831152128 is 8212511382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2831152123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20665276 + ... + 20665412.

Almost surely, 22831152128 is an apocalyptic number.

2831152128 is a gapful number since it is divisible by the number (28) 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 2831152128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4488137568).

2831152128 is an abundant number, since it is smaller than the sum of its proper divisors (6145123008).

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

2831152128 is a wasteful number, since it uses less digits than its factorization.

2831152128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 180 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 2831152128 is about 53208.5719409946. The cubic root of 2831152128 is about 1414.6675838067.

The spelling of 2831152128 in words is "two billion, eight hundred thirty-one million, one hundred fifty-two thousand, one hundred twenty-eight".