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130247544 = 23371375659
BaseRepresentation
bin1111100001101…
…10101101111000
3100002002021001010
413300312231320
5231320410134
620531353520
73141041310
oct760665570
9302067033
10130247544
11675809a9
12377528a0
1320ca436b
1413426440
15b67bce9
hex7c36b78

130247544 has 64 divisors (see below), whose sum is σ = 374918400. Its totient is φ = 36935424.

The previous prime is 130247543. The next prime is 130247563. The reversal of 130247544 is 445742031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130247543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20187 + ... + 25845.

It is an arithmetic number, because the mean of its divisors is an integer number (5858100).

Almost surely, 2130247544 is an apocalyptic number.

130247544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130247544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187459200).

130247544 is an abundant number, since it is smaller than the sum of its proper divisors (244670856).

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

130247544 is a wasteful number, since it uses less digits than its factorization.

130247544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5812 (or 5808 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 130247544 is about 11412.6046106925. The cubic root of 130247544 is about 506.9010384599.

Adding to 130247544 its reverse (445742031), we get a palindrome (575989575).

The spelling of 130247544 in words is "one hundred thirty million, two hundred forty-seven thousand, five hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 137 168 274 411 548 822 959 1096 1644 1918 2877 3288 3836 5659 5754 7672 11318 11508 16977 22636 23016 33954 39613 45272 67908 79226 118839 135816 158452 237678 316904 475356 775283 950712 1550566 2325849 3101132 4651698 5426981 6202264 9303396 10853962 16280943 18606792 21707924 32561886 43415848 65123772 130247544