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124425431 = 1317563011
BaseRepresentation
bin1110110101010…
…01010011010111
322200010110121022
413122221103113
5223323103211
620202511355
73040412234
oct732512327
9280113538
10124425431
1164264739
123580555b
131ca16320
141274c78b
15adcbbdb
hex76a94d7

124425431 has 8 divisors (see below), whose sum is σ = 141879024. Its totient is φ = 108097920.

The previous prime is 124425419. The next prime is 124425437. The reversal of 124425431 is 134524421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-124425431 is a prime.

It is a super-2 number, since 2×1244254312 = 30963375759071522, 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 124425431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124425437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281285 + ... + 281726.

It is an arithmetic number, because the mean of its divisors is an integer number (17734878).

Almost surely, 2124425431 is an apocalyptic number.

124425431 is a deficient number, since it is larger than the sum of its proper divisors (17453593).

124425431 is a wasteful number, since it uses less digits than its factorization.

124425431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563041.

The product of its digits is 3840, while the sum is 26.

The square root of 124425431 is about 11154.6147849220. The cubic root of 124425431 is about 499.2327311994.

Adding to 124425431 its reverse (134524421), we get a palindrome (258949852).

The spelling of 124425431 in words is "one hundred twenty-four million, four hundred twenty-five thousand, four hundred thirty-one".

Divisors: 1 13 17 221 563011 7319143 9571187 124425431