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1130510521 = 7161501503
BaseRepresentation
bin100001101100010…
…0011100010111001
32220210020212220001
41003120203202321
54303402314041
6304102433001
740005116020
oct10330434271
92823225801
101130510521
11530164318
12276732761
131502a414a
14aa2018b7
15693b1131
hex436238b9

1130510521 has 4 divisors (see below), whose sum is σ = 1292012032. Its totient is φ = 969009012.

The previous prime is 1130510503. The next prime is 1130510561. The reversal of 1130510521 is 1250150311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1250150311 = 4130491471.

It is a cyclic number.

It is not a de Polignac number, because 1130510521 - 29 = 1130510009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1130510501) 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, 80750745 + ... + 80750758.

It is an arithmetic number, because the mean of its divisors is an integer number (323003008).

Almost surely, 21130510521 is an apocalyptic number.

It is an amenable number.

1130510521 is a deficient number, since it is larger than the sum of its proper divisors (161501511).

1130510521 is an equidigital number, since it uses as much as digits as its factorization.

1130510521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161501510.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1130510521 is about 33623.0653123715. The cubic root of 1130510521 is about 1041.7372717099.

Adding to 1130510521 its reverse (1250150311), we get a palindrome (2380660832).

The spelling of 1130510521 in words is "one billion, one hundred thirty million, five hundred ten thousand, five hundred twenty-one".

Divisors: 1 7 161501503 1130510521