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121180120 = 2355635381
BaseRepresentation
bin1110011100100…
…00111111011000
322110000120212121
413032100333120
5222010230440
620005151024
73001004545
oct716207730
9273016777
10121180120
1162448466
12346bb474
131c14b119
1412145bcc
15a98a34a
hex7390fd8

121180120 has 32 divisors (see below), whose sum is σ = 273190320. Its totient is φ = 48376960.

The previous prime is 121180079. The next prime is 121180121. The reversal of 121180120 is 21081121.

It is a junction number, because it is equal to n+sod(n) for n = 121180094 and 121180103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121180121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19830 + ... + 25210.

Almost surely, 2121180120 is an apocalyptic number.

121180120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121180120 is an abundant number, since it is smaller than the sum of its proper divisors (152010200).

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

121180120 is a wasteful number, since it uses less digits than its factorization.

121180120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5955 (or 5951 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 121180120 is about 11008.1842281096. The cubic root of 121180120 is about 494.8540466879.

The spelling of 121180120 in words is "one hundred twenty-one million, one hundred eighty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 563 1126 2252 2815 4504 5381 5630 10762 11260 21524 22520 26905 43048 53810 107620 215240 3029503 6059006 12118012 15147515 24236024 30295030 60590060 121180120