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120124940 = 225133712487
BaseRepresentation
bin1110010100011…
…11011000001100
322101000222102212
413022033120030
5221222444230
615530405552
72656021325
oct712173014
9271028385
10120124940
1161897711
12342908b8
131bb6ba60
1411d4d44c
15a82c895
hex728f60c

120124940 has 48 divisors (see below), whose sum is σ = 279031872. Its totient is φ = 43151616.

The previous prime is 120124933. The next prime is 120124993. The reversal of 120124940 is 49421021.

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 15 ways as a sum of consecutive naturals, for example, 3377 + ... + 15863.

It is an arithmetic number, because the mean of its divisors is an integer number (5813164).

Almost surely, 2120124940 is an apocalyptic number.

120124940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120124940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139515936).

120124940 is an abundant number, since it is smaller than the sum of its proper divisors (158906932).

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

120124940 is a wasteful number, since it uses less digits than its factorization.

120124940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12546 (or 12544 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 120124940 is about 10960.1523712036. The cubic root of 120124940 is about 493.4135380109.

Adding to 120124940 its reverse (49421021), we get a palindrome (169545961).

The spelling of 120124940 in words is "one hundred twenty million, one hundred twenty-four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 13 20 26 37 52 65 74 130 148 185 260 370 481 740 962 1924 2405 4810 9620 12487 24974 49948 62435 124870 162331 249740 324662 462019 649324 811655 924038 1623310 1848076 2310095 3246620 4620190 6006247 9240380 12012494 24024988 30031235 60062470 120124940