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1431223301 = 10913130489
BaseRepresentation
bin101010101001110…
…1011110000000101
310200202002200021102
41111103223300011
510412343121201
6354004025445
750316124454
oct12523536005
93622080242
101431223301
11674985282
1233b392285
1319a6914c1
14d811cb9b
15859b126b
hex554ebc05

1431223301 has 4 divisors (see below), whose sum is σ = 1444353900. Its totient is φ = 1418092704.

The previous prime is 1431223271. The next prime is 1431223331. The reversal of 1431223301 is 1033221341.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1431223271) and next prime (1431223331).

It can be written as a sum of positive squares in 2 ways, for example, as 730350625 + 700872676 = 27025^2 + 26474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1431223301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431223331) 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, 6565136 + ... + 6565353.

It is an arithmetic number, because the mean of its divisors is an integer number (361088475).

Almost surely, 21431223301 is an apocalyptic number.

It is an amenable number.

1431223301 is a deficient number, since it is larger than the sum of its proper divisors (13130599).

1431223301 is a wasteful number, since it uses less digits than its factorization.

1431223301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13130598.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1431223301 is about 37831.5120104920. The cubic root of 1431223301 is about 1126.9443383376.

Adding to 1431223301 its reverse (1033221341), we get a palindrome (2464444642).

The spelling of 1431223301 in words is "one billion, four hundred thirty-one million, two hundred twenty-three thousand, three hundred one".

Divisors: 1 109 13130489 1431223301