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2557398883 = 13461426731
BaseRepresentation
bin1001100001101110…
…1100111101100011
320121020012022202011
42120123230331203
520214143231013
61101433533351
7120242350264
oct23033547543
96536168664
102557398883
1110a26486a6
125b4574257
13319aa84a0
141a391296b
15ee7b7c3d
hex986ecf63

2557398883 has 8 divisors (see below), whose sum is σ = 2760102576. Its totient is φ = 2355549600.

The previous prime is 2557398863. The next prime is 2557398923. The reversal of 2557398883 is 3888937552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2557398883 - 221 = 2555301731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2557398863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207373 + ... + 219358.

It is an arithmetic number, because the mean of its divisors is an integer number (345012822).

Almost surely, 22557398883 is an apocalyptic number.

2557398883 is a deficient number, since it is larger than the sum of its proper divisors (202703693).

2557398883 is a wasteful number, since it uses less digits than its factorization.

2557398883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427205.

The product of its digits is 14515200, while the sum is 58.

The square root of 2557398883 is about 50570.7314857122. The cubic root of 2557398883 is about 1367.5172828847.

The spelling of 2557398883 in words is "two billion, five hundred fifty-seven million, three hundred ninety-eight thousand, eight hundred eighty-three".

Divisors: 1 13 461 5993 426731 5547503 196722991 2557398883