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25328392280 = 235633209807
BaseRepresentation
bin10111100101101100…
…001001100001011000
32102101011211122022222
4113211230021201120
5403333032023110
615345151203212
71554442532162
oct274554114130
972334748288
1025328392280
11a818243004
124aaa516508
132508595589
141323c2b932
159d393dc55
hex5e5b09858

25328392280 has 16 divisors (see below), whose sum is σ = 56988882720. Its totient is φ = 10131356896.

The previous prime is 25328392277. The next prime is 25328392283. The reversal of 25328392280 is 8229382352.

It is an interprime number because it is at equal distance from previous prime (25328392277) and next prime (25328392283).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25328392283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316604864 + ... + 316604943.

It is an arithmetic number, because the mean of its divisors is an integer number (3561805170).

Almost surely, 225328392280 is an apocalyptic number.

25328392280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25328392280 is an abundant number, since it is smaller than the sum of its proper divisors (31660490440).

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

25328392280 is a wasteful number, since it uses less digits than its factorization.

25328392280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633209818 (or 633209814 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 25328392280 in words is "twenty-five billion, three hundred twenty-eight million, three hundred ninety-two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 633209807 1266419614 2532839228 3166049035 5065678456 6332098070 12664196140 25328392280