[go: up one dir, main page]

Search a number
-
+
530520081 = 37133162687
BaseRepresentation
bin11111100111110…
…001100000010001
31100222021012201220
4133213301200101
52041303120311
6124350515253
716101226530
oct3747614021
91328235656
10530520081
11252512653
12129805b29
1385baca10
145065c317
1531896206
hex1f9f1811

530520081 has 32 divisors (see below), whose sum is σ = 898695168. Its totient is φ = 270803520.

The previous prime is 530520079. The next prime is 530520083. The reversal of 530520081 is 180025035.

It is an interprime number because it is at equal distance from previous prime (530520079) and next prime (530520083).

It is not a de Polignac number, because 530520081 - 21 = 530520079 is a prime.

It is a super-2 number, since 2×5305200812 = 562903112688493122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (530520083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22881 + ... + 39806.

It is an arithmetic number, because the mean of its divisors is an integer number (28084224).

Almost surely, 2530520081 is an apocalyptic number.

It is an amenable number.

530520081 is a deficient number, since it is larger than the sum of its proper divisors (368175087).

530520081 is a wasteful number, since it uses less digits than its factorization.

530520081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62741.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 530520081 is about 23033.0215343103. The cubic root of 530520081 is about 809.5318541597.

The spelling of 530520081 in words is "five hundred thirty million, five hundred twenty thousand, eighty-one".

Divisors: 1 3 7 13 21 31 39 91 93 217 273 403 651 1209 2821 8463 62687 188061 438809 814931 1316427 1943297 2444793 5704517 5829891 13603079 17113551 25262861 40809237 75788583 176840027 530520081