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1422254431 = 13109404187
BaseRepresentation
bin101010011000101…
…1110000101011111
310200010020000022001
41110301132011133
510403044120211
6353043503131
750146651243
oct12461360537
93603200261
101422254431
1166a909894
12338387aa7
13198871090
14d6c66423
1584cddac1
hex54c5e15f

1422254431 has 4 divisors (see below), whose sum is σ = 1531658632. Its totient is φ = 1312850232.

The previous prime is 1422254399. The next prime is 1422254441. The reversal of 1422254431 is 1344522241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1344522241 = 3499384259.

It is a cyclic number.

It is not a de Polignac number, because 1422254431 - 25 = 1422254399 is a prime.

It is a super-2 number, since 2×14222544312 = 4045615332998267522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1422254431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422254441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54702081 + ... + 54702106.

It is an arithmetic number, because the mean of its divisors is an integer number (382914658).

Almost surely, 21422254431 is an apocalyptic number.

1422254431 is a deficient number, since it is larger than the sum of its proper divisors (109404201).

1422254431 is a wasteful number, since it uses less digits than its factorization.

1422254431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109404200.

The product of its digits is 7680, while the sum is 28.

The square root of 1422254431 is about 37712.7886929620. The cubic root of 1422254431 is about 1124.5853763597.

Adding to 1422254431 its reverse (1344522241), we get a palindrome (2766776672).

The spelling of 1422254431 in words is "one billion, four hundred twenty-two million, two hundred fifty-four thousand, four hundred thirty-one".

Divisors: 1 13 109404187 1422254431