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124120242 = 2334315333
BaseRepresentation
bin1110110010111…
…10110010110010
322122112221222000
413121132302302
5223233321432
620152154430
73035001411
oct731366262
9278487860
10124120242
1164076414
1235698a16
131c93a43c
14126ad478
15ad6b57c
hex765ecb2

124120242 has 32 divisors (see below), whose sum is σ = 276514560. Its totient is φ = 41269680.

The previous prime is 124120169. The next prime is 124120267. The reversal of 124120242 is 242021421.

124120242 is a `hidden beast` number, since 12 + 412 + 0 + 242 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20608 + ... + 25940.

It is an arithmetic number, because the mean of its divisors is an integer number (8641080).

Almost surely, 2124120242 is an apocalyptic number.

124120242 is an abundant number, since it is smaller than the sum of its proper divisors (152394318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124120242 is a wasteful number, since it uses less digits than its factorization.

124120242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5775 (or 5769 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 124120242 is about 11140.9264426259. The cubic root of 124120242 is about 498.8242266145.

Adding to 124120242 its reverse (242021421), we get a palindrome (366141663).

The spelling of 124120242 in words is "one hundred twenty-four million, one hundred twenty thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 431 862 1293 2586 3879 5333 7758 10666 11637 15999 23274 31998 47997 95994 143991 287982 2298523 4597046 6895569 13791138 20686707 41373414 62060121 124120242