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530139144 = 23323979901
BaseRepresentation
bin11111100110010…
…100100000001000
31100221112212012010
4133212110200020
52041203423034
6124334415520
716065052113
oct3746244010
91327485163
10530139144
11252282427
121296615a0
1385aa8502
145059d57a
153181d3e9
hex1f994808

530139144 has 64 divisors (see below), whose sum is σ = 1397370240. Its totient is φ = 167270400.

The previous prime is 530139139. The next prime is 530139151. The reversal of 530139144 is 441931035.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48594 + ... + 58494.

It is an arithmetic number, because the mean of its divisors is an integer number (21833910).

Almost surely, 2530139144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530139144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698685120).

530139144 is an abundant number, since it is smaller than the sum of its proper divisors (867231096).

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

530139144 is a wasteful number, since it uses less digits than its factorization.

530139144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10030 (or 10026 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 530139144 is about 23024.7506826893. The cubic root of 530139144 is about 809.3380478133.

The spelling of 530139144 in words is "five hundred thirty million, one hundred thirty-nine thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 97 138 184 194 276 291 388 552 582 776 1164 2231 2328 4462 6693 8924 9901 13386 17848 19802 26772 29703 39604 53544 59406 79208 118812 227723 237624 455446 683169 910892 960397 1366338 1821784 1920794 2732676 2881191 3841588 5465352 5762382 7683176 11524764 22089131 23049528 44178262 66267393 88356524 132534786 176713048 265069572 530139144