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40125145300 = 22522913836257
BaseRepresentation
bin100101010111101001…
…010010000011010100
310211120101112120120121
4211113221102003110
51124134014122200
630233325041324
72620224051622
oct452751220324
9124511476517
1040125145300
1116020664609
1279399b6244
133a25c8b436
141d29066512
15109c9a6e1a
hex957a520d4

40125145300 has 36 divisors (see below), whose sum is σ = 90074039580. Its totient is φ = 15496606720.

The previous prime is 40125145283. The next prime is 40125145303. The reversal of 40125145300 is 354152104.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6790419216 + 33334726084 = 82404^2 + 182578^2 .

It is a super-2 number, since 2×401251453002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40125145303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6915229 + ... + 6921028.

It is an arithmetic number, because the mean of its divisors is an integer number (2502056655).

Almost surely, 240125145300 is an apocalyptic number.

It is an amenable number.

40125145300 is an abundant number, since it is smaller than the sum of its proper divisors (49948894280).

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

40125145300 is a wasteful number, since it uses less digits than its factorization.

40125145300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13836300 (or 13836293 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 40125145300 its reverse (354152104), we get a palindrome (40479297404).

The spelling of 40125145300 in words is "forty billion, one hundred twenty-five million, one hundred forty-five thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 100 116 145 290 580 725 1450 2900 13836257 27672514 55345028 69181285 138362570 276725140 345906425 401251453 691812850 802502906 1383625700 1605005812 2006257265 4012514530 8025029060 10031286325 20062572650 40125145300