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124464421 = 1979101821
BaseRepresentation
bin1110110101100…
…10110100100101
322200012110002101
413122302310211
5223330330141
620203412101
73040634014
oct732626445
9280173071
10124464421
1164290a64
1235824031
131ca2acb3
141275ca7b
15add8531
hex76b2d25

124464421 has 16 divisors (see below), whose sum is σ = 134150400. Its totient is φ = 115128000.

The previous prime is 124464401. The next prime is 124464427.

124464421 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-124464421 is a prime.

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 124464421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124464427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151191 + ... + 152011.

It is an arithmetic number, because the mean of its divisors is an integer number (8384400).

Almost surely, 2124464421 is an apocalyptic number.

It is an amenable number.

124464421 is a deficient number, since it is larger than the sum of its proper divisors (9685979).

124464421 is a wasteful number, since it uses less digits than its factorization.

124464421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its digits is 6144, while the sum is 28.

The square root of 124464421 is about 11156.3623551765. The cubic root of 124464421 is about 499.2848723392.

The spelling of 124464421 in words is "one hundred twenty-four million, four hundred sixty-four thousand, four hundred twenty-one".

Divisors: 1 19 79 101 821 1501 1919 7979 15599 64859 82921 151601 1232321 1575499 6550759 124464421