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130458528 = 25324311051
BaseRepresentation
bin1111100011010…
…10001110100000
3100002110222110100
413301222032200
5231344133103
620540102400
73142610364
oct761521640
9302428410
10130458528
1167705472
1237834a00
13210493c5
141347d2a4
15b6be5a3
hex7c6a3a0

130458528 has 72 divisors (see below), whose sum is σ = 372206016. Its totient is φ = 43344000.

The previous prime is 130458521. The next prime is 130458529. The reversal of 130458528 is 825854031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 130458492 and 130458501.

It is not an unprimeable number, because it can be changed into a prime (130458521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123603 + ... + 124653.

It is an arithmetic number, because the mean of its divisors is an integer number (5169528).

Almost surely, 2130458528 is an apocalyptic number.

130458528 is a gapful number since it is divisible by the number (18) 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 130458528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186103008).

130458528 is an abundant number, since it is smaller than the sum of its proper divisors (241747488).

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

130458528 is a wasteful number, since it uses less digits than its factorization.

130458528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498 (or 1487 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 130458528 is about 11421.8443344322. The cubic root of 130458528 is about 507.1745952837.

The spelling of 130458528 in words is "one hundred thirty million, four hundred fifty-eight thousand, five hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 431 862 1051 1293 1724 2102 2586 3153 3448 3879 4204 5172 6306 6896 7758 8408 9459 10344 12612 13792 15516 16816 18918 20688 25224 31032 33632 37836 41376 50448 62064 75672 100896 124128 151344 302688 452981 905962 1358943 1811924 2717886 3623848 4076829 5435772 7247696 8153658 10871544 14495392 16307316 21743088 32614632 43486176 65229264 130458528