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124124242 = 21117331883
BaseRepresentation
bin1110110010111…
…11110001010010
322122120011110011
413121133301102
5223233433432
620152225134
73035016154
oct731376122
9278504404
10124124242
1164079420
123569b1aa
131c93c1c8
14126b0ad4
15ad6c847
hex765fc52

124124242 has 16 divisors (see below), whose sum is σ = 215060832. Its totient is φ = 53101120.

The previous prime is 124124239. The next prime is 124124243. The reversal of 124124242 is 242421421.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (124124243) 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, 165568 + ... + 166315.

It is an arithmetic number, because the mean of its divisors is an integer number (13441302).

Almost surely, 2124124242 is an apocalyptic number.

124124242 is a deficient number, since it is larger than the sum of its proper divisors (90936590).

124124242 is a wasteful number, since it uses less digits than its factorization.

124124242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331913.

The product of its digits is 1024, while the sum is 22.

The square root of 124124242 is about 11141.1059594638. The cubic root of 124124242 is about 498.8295850622.

Adding to 124124242 its reverse (242421421), we get a palindrome (366545663).

The spelling of 124124242 in words is "one hundred twenty-four million, one hundred twenty-four thousand, two hundred forty-two".

Divisors: 1 2 11 17 22 34 187 374 331883 663766 3650713 5642011 7301426 11284022 62062121 124124242