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2540001880 = 235134884619
BaseRepresentation
bin1001011101100101…
…0101101001011000
320120000110110112201
42113121111221120
520200220030010
61100013015544
7116641442203
oct22731255130
96500413481
102540001880
111093846009
125aa7845b4
133162c6ac0
141a14a493a
15ececd23a
hex97655a58

2540001880 has 32 divisors (see below), whose sum is σ = 6154621200. Its totient is φ = 937846656.

The previous prime is 2540001853. The next prime is 2540001881. The reversal of 2540001880 is 881000452.

2540001880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540001881) 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, 2441790 + ... + 2442829.

Almost surely, 22540001880 is an apocalyptic number.

2540001880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540001880 is an abundant number, since it is smaller than the sum of its proper divisors (3614619320).

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

2540001880 is a wasteful number, since it uses less digits than its factorization.

2540001880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884643 (or 4884639 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 2540001880 is about 50398.4313247942. The cubic root of 2540001880 is about 1364.4093263883.

The spelling of 2540001880 in words is "two billion, five hundred forty million, one thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 4884619 9769238 19538476 24423095 39076952 48846190 63500047 97692380 127000094 195384760 254000188 317500235 508000376 635000470 1270000940 2540001880