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120557070 = 23251339523
BaseRepresentation
bin1110010111110…
…00111000001110
322101211221012200
413023320320032
5221330311240
615543542330
72662501224
oct713707016
9271757180
10120557070
1162062347
123445a9a6
131bc9065a
1412022b14
15a8b5930
hex72f8e0e

120557070 has 24 divisors (see below), whose sum is σ = 313448616. Its totient is φ = 32148528.

The previous prime is 120557069. The next prime is 120557083. The reversal of 120557070 is 70755021.

120557070 is a `hidden beast` number, since 1 + 20 + 5 + 570 + 70 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 669672 + ... + 669851.

It is an arithmetic number, because the mean of its divisors is an integer number (13060359).

Almost surely, 2120557070 is an apocalyptic number.

120557070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120557070 is an abundant number, since it is smaller than the sum of its proper divisors (192891546).

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

120557070 is a wasteful number, since it uses less digits than its factorization.

120557070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339536 (or 1339533 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 120557070 is about 10979.8483596086. The cubic root of 120557070 is about 494.0044883680.

The spelling of 120557070 in words is "one hundred twenty million, five hundred fifty-seven thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1339523 2679046 4018569 6697615 8037138 12055707 13395230 20092845 24111414 40185690 60278535 120557070