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40064130 = 2325445157
BaseRepresentation
bin1001100011010…
…1010010000010
32210101110122200
42120311102002
540224023010
63550414030
7664353021
oct230652202
983343580
1040064130
1120684857
1211501316
1383b9ab2
14546c8b8
1537b5cc0
hex2635482

40064130 has 24 divisors (see below), whose sum is σ = 104166972. Its totient is φ = 10683744.

The previous prime is 40064113. The next prime is 40064161. The reversal of 40064130 is 3146004.

It can be written as a sum of positive squares in 2 ways, for example, as 38825361 + 1238769 = 6231^2 + 1113^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222489 + ... + 222668.

Almost surely, 240064130 is an apocalyptic number.

40064130 is an abundant number, since it is smaller than the sum of its proper divisors (64102842).

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

40064130 is a wasteful number, since it uses less digits than its factorization.

40064130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445170 (or 445167 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40064130 is about 6329.6232115348. The cubic root of 40064130 is about 342.1778596771.

The spelling of 40064130 in words is "forty million, sixty-four thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 445157 890314 1335471 2225785 2670942 4006413 4451570 6677355 8012826 13354710 20032065 40064130