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120885020 = 2256044251
BaseRepresentation
bin1110011010010…
…00111100011100
322102110121001222
413031020330130
5221421310040
615554552512
72665335314
oct715107434
9272417058
10120885020
1162266783
1234598738
131c0769c9
14120aa444
15a92cbb5
hex7348f1c

120885020 has 12 divisors (see below), whose sum is σ = 253858584. Its totient is φ = 48354000.

The previous prime is 120885001. The next prime is 120885043. The reversal of 120885020 is 20588021.

It is a super-2 number, since 2×1208850202 = 29226376120800800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3022106 + ... + 3022145.

It is an arithmetic number, because the mean of its divisors is an integer number (21154882).

Almost surely, 2120885020 is an apocalyptic number.

120885020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120885020 is an abundant number, since it is smaller than the sum of its proper divisors (132973564).

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

120885020 is a wasteful number, since it uses less digits than its factorization.

120885020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6044260 (or 6044258 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 120885020 is about 10994.7723941881. The cubic root of 120885020 is about 494.4520276954.

The spelling of 120885020 in words is "one hundred twenty million, eight hundred eighty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 6044251 12088502 24177004 30221255 60442510 120885020