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1122044431 = 6118394171
BaseRepresentation
bin100001011100001…
…0000101000001111
32220012022202121011
41002320100220033
54244220410211
6303201150051
736543135364
oct10270205017
92805282534
101122044431
11526401652
1227392b327
1314b5cb821
14a903a46b
156878c921
hex42e10a0f

1122044431 has 4 divisors (see below), whose sum is σ = 1140438664. Its totient is φ = 1103650200.

The previous prime is 1122044401. The next prime is 1122044459. The reversal of 1122044431 is 1344402211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1122044431 - 213 = 1122036239 is a prime.

It is a super-2 number, since 2×11220444312 = 2517967410276227522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122044401) 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, 9197025 + ... + 9197146.

It is an arithmetic number, because the mean of its divisors is an integer number (285109666).

Almost surely, 21122044431 is an apocalyptic number.

1122044431 is a deficient number, since it is larger than the sum of its proper divisors (18394233).

1122044431 is an equidigital number, since it uses as much as digits as its factorization.

1122044431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18394232.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1122044431 is about 33496.9316654526. The cubic root of 1122044431 is about 1039.1303229421.

Adding to 1122044431 its reverse (1344402211), we get a palindrome (2466446642).

The spelling of 1122044431 in words is "one billion, one hundred twenty-two million, forty-four thousand, four hundred thirty-one".

Divisors: 1 61 18394171 1122044431