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130314440 = 2353257861
BaseRepresentation
bin1111100010001…
…11000011001000
3100002012122210202
413301013003020
5231330030230
620533031332
73141440324
oct761070310
9302178722
10130314440
1167617193
1237785548
1320cc8949
1413442984
15b691a45
hex7c470c8

130314440 has 16 divisors (see below), whose sum is σ = 293207580. Its totient is φ = 52125760.

The previous prime is 130314427. The next prime is 130314449. The reversal of 130314440 is 44413031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 127735204 + 2579236 = 11302^2 + 1606^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (130314449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628891 + ... + 1628970.

Almost surely, 2130314440 is an apocalyptic number.

130314440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130314440 is an abundant number, since it is smaller than the sum of its proper divisors (162893140).

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

130314440 is a wasteful number, since it uses less digits than its factorization.

130314440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3257872 (or 3257868 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 130314440 is about 11415.5350290733. The cubic root of 130314440 is about 506.9878061820.

Adding to 130314440 its reverse (44413031), we get a palindrome (174727471).

It can be divided in two parts, 13031 and 4440, that added together give a palindrome (17471).

The spelling of 130314440 in words is "one hundred thirty million, three hundred fourteen thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 3257861 6515722 13031444 16289305 26062888 32578610 65157220 130314440