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1232130901 = 4328654207
BaseRepresentation
bin100100101110000…
…1101001101010101
310011212110201211211
41021130031031111
510010411142101
6322132501421
742350640241
oct11134151525
93155421754
101232130901
11582562201
122a477a871
13168364351
14b98d5421
1573285c51
hex4970d355

1232130901 has 4 divisors (see below), whose sum is σ = 1260785152. Its totient is φ = 1203476652.

The previous prime is 1232130883. The next prime is 1232130931. The reversal of 1232130901 is 1090312321.

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.

It is a cyclic number.

It is not a de Polignac number, because 1232130901 - 219 = 1231606613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232130931) 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, 14327061 + ... + 14327146.

It is an arithmetic number, because the mean of its divisors is an integer number (315196288).

Almost surely, 21232130901 is an apocalyptic number.

It is an amenable number.

1232130901 is a deficient number, since it is larger than the sum of its proper divisors (28654251).

1232130901 is an equidigital number, since it uses as much as digits as its factorization.

1232130901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28654250.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1232130901 is about 35101.7221942172. The cubic root of 1232130901 is about 1072.0596485731.

The spelling of 1232130901 in words is "one billion, two hundred thirty-two million, one hundred thirty thousand, nine hundred one".

Divisors: 1 43 28654207 1232130901