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124038172 = 22236720123
BaseRepresentation
bin1110110010010…
…10110000011100
322122101210101101
413121022300130
5223223210142
620150322444
73034210216
oct731126034
9278353341
10124038172
116401a795
1235659424
131c90bc8b
141268b5b6
15ad520b7
hex764ac1c

124038172 has 24 divisors (see below), whose sum is σ = 229896576. Its totient is φ = 58434288.

The previous prime is 124038157. The next prime is 124038197. The reversal of 124038172 is 271830421.

It is a super-2 number, since 2×1240381722 = 30770936226203168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 124038172.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3898 + ... + 16225.

It is an arithmetic number, because the mean of its divisors is an integer number (9579024).

Almost surely, 2124038172 is an apocalyptic number.

It is an amenable number.

124038172 is a deficient number, since it is larger than the sum of its proper divisors (105858404).

124038172 is a wasteful number, since it uses less digits than its factorization.

124038172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20217 (or 20215 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 124038172 is about 11137.2425671707. The cubic root of 124038172 is about 498.7142592421.

Adding to 124038172 its reverse (271830421), we get a palindrome (395868593).

The spelling of 124038172 in words is "one hundred twenty-four million, thirty-eight thousand, one hundred seventy-two".

Divisors: 1 2 4 23 46 67 92 134 268 1541 3082 6164 20123 40246 80492 462829 925658 1348241 1851316 2696482 5392964 31009543 62019086 124038172