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2501132740 = 225125056637
BaseRepresentation
bin1001010100010100…
…0100000111000100
320110022022201002221
42111011010013010
520110242221430
61052103542124
7115660164121
oct22505040704
96408281087
102501132740
111073908057
1259975a944
1330b237c02
1419a267748
15e98a157a
hex951441c4

2501132740 has 12 divisors (see below), whose sum is σ = 5252378796. Its totient is φ = 1000453088.

The previous prime is 2501132737. The next prime is 2501132749. The reversal of 2501132740 is 472311052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 535274496 + 1965858244 = 23136^2 + 44338^2 .

It is not an unprimeable number, because it can be changed into a prime (2501132749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62528299 + ... + 62528338.

It is an arithmetic number, because the mean of its divisors is an integer number (437698233).

Almost surely, 22501132740 is an apocalyptic number.

2501132740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2501132740 is an abundant number, since it is smaller than the sum of its proper divisors (2751246056).

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

2501132740 is a wasteful number, since it uses less digits than its factorization.

2501132740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125056646 (or 125056644 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2501132740 is about 50011.3261171907. The cubic root of 2501132740 is about 1357.4137593071.

Adding to 2501132740 its reverse (472311052), we get a palindrome (2973443792).

The spelling of 2501132740 in words is "two billion, five hundred one million, one hundred thirty-two thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 125056637 250113274 500226548 625283185 1250566370 2501132740