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124320441 = 3713145191
BaseRepresentation
bin1110110100011…
…11101010111001
322122221010120210
413122033222321
5223311223231
620200341333
73036464160
oct732175271
9278833523
10124320441
11641a2873
1235774849
131c9aa5bb
14127223d7
15adaaa46
hex768fab9

124320441 has 16 divisors (see below), whose sum is σ = 190891008. Its totient is φ = 70496400.

The previous prime is 124320433. The next prime is 124320461. The reversal of 124320441 is 144023421.

It is not a de Polignac number, because 124320441 - 23 = 124320433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (124320461) 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 15 ways as a sum of consecutive naturals, for example, 19845 + ... + 25346.

It is an arithmetic number, because the mean of its divisors is an integer number (11930688).

Almost surely, 2124320441 is an apocalyptic number.

It is an amenable number.

124320441 is a deficient number, since it is larger than the sum of its proper divisors (66570567).

124320441 is a wasteful number, since it uses less digits than its factorization.

124320441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45332.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 124320441 is about 11149.9076677791. The cubic root of 124320441 is about 499.0922743990.

Adding to 124320441 its reverse (144023421), we get a palindrome (268343862).

The spelling of 124320441 in words is "one hundred twenty-four million, three hundred twenty thousand, four hundred forty-one".

Divisors: 1 3 7 21 131 393 917 2751 45191 135573 316337 949011 5920021 17760063 41440147 124320441