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2025881280 = 2635526053
BaseRepresentation
bin111100011000000…
…0111111011000000
312020012001102200000
41320300013323000
513122111200110
6533005400000
7101126464263
oct17060077300
95205042600
102025881280
1194a614655
12486569000
13263939727
141530b4cda
15bccc61c0
hex78c07ec0

2025881280 has 168 divisors, whose sum is σ = 7226545872. Its totient is φ = 540214272.

The previous prime is 2025881227. The next prime is 2025881339. The reversal of 2025881280 is 821885202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64734 + ... + 90786.

It is an arithmetic number, because the mean of its divisors is an integer number (43015154).

Almost surely, 22025881280 is an apocalyptic number.

2025881280 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 2025881280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3613272936).

2025881280 is an abundant number, since it is smaller than the sum of its proper divisors (5200664592).

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

2025881280 is an equidigital number, since it uses as much as digits as its factorization.

2025881280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26085 (or 26063 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 2025881280 is about 45009.7909348622. The cubic root of 2025881280 is about 1265.3325022828.

The spelling of 2025881280 in words is "two billion, twenty-five million, eight hundred eighty-one thousand, two hundred eighty".