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120275380 = 22522926261
BaseRepresentation
bin1110010101101…
…00000110110100
322101022121210201
413022310012310
5221242303010
615533530244
72660216041
oct712640664
9271277721
10120275380
116198a745
1234343984
131bbc2384
1411d8c1c8
15a85c23a
hex72b41b4

120275380 has 24 divisors (see below), whose sum is σ = 253690920. Its totient is φ = 47898240.

The previous prime is 120275371. The next prime is 120275387. The reversal of 120275380 is 83572021.

It can be written as a sum of positive squares in 4 ways, for example, as 6170256 + 114105124 = 2484^2 + 10682^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120275387) by changing a digit.

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, 8551 + ... + 17710.

It is an arithmetic number, because the mean of its divisors is an integer number (10570455).

Almost surely, 2120275380 is an apocalyptic number.

120275380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120275380 is an abundant number, since it is smaller than the sum of its proper divisors (133415540).

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

120275380 is a wasteful number, since it uses less digits than its factorization.

120275380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26499 (or 26497 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 120275380 is about 10967.0132670659. The cubic root of 120275380 is about 493.6194296626.

The spelling of 120275380 in words is "one hundred twenty million, two hundred seventy-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 229 458 916 1145 2290 4580 26261 52522 105044 131305 262610 525220 6013769 12027538 24055076 30068845 60137690 120275380