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124013121 = 3184722381
BaseRepresentation
bin1110110010001…
…00101001000001
322122100112000120
413121010221001
5223221404441
620150010453
73034044201
oct731045101
9278315016
10124013121
1164002991
1235646a29
131c90075b
1412682401
15ad49966
hex7644a41

124013121 has 8 divisors (see below), whose sum is σ = 165447744. Its totient is φ = 82626960.

The previous prime is 124013117. The next prime is 124013137. The reversal of 124013121 is 121310421.

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

It is not a de Polignac number, because 124013121 - 22 = 124013117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124013121.

It is not an unprimeable number, because it can be changed into a prime (124013191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5650 + ... + 16731.

It is an arithmetic number, because the mean of its divisors is an integer number (20680968).

Almost surely, 2124013121 is an apocalyptic number.

It is an amenable number.

124013121 is a deficient number, since it is larger than the sum of its proper divisors (41434623).

124013121 is a wasteful number, since it uses less digits than its factorization.

124013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24231.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 124013121 is about 11136.1178603677. The cubic root of 124013121 is about 498.6806832016.

Adding to 124013121 its reverse (121310421), we get a palindrome (245323542).

The spelling of 124013121 in words is "one hundred twenty-four million, thirteen thousand, one hundred twenty-one".

Divisors: 1 3 1847 5541 22381 67143 41337707 124013121