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200180020 = 22531322871
BaseRepresentation
bin10111110111010…
…00000100110100
3111221200012100211
423323220010310
5402221230040
631510315204
74650334135
oct1373500464
9457605324
10200180020
11a2aa6237
1257058b04
133261b221
141c82bc8c
15128928ea
hexbee8134

200180020 has 24 divisors (see below), whose sum is σ = 433939968. Its totient is φ = 77488800.

The previous prime is 200179961. The next prime is 200180039. The reversal of 200180020 is 20081002.

200180020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160816 + ... + 162055.

It is an arithmetic number, because the mean of its divisors is an integer number (18080832).

Almost surely, 2200180020 is an apocalyptic number.

200180020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200180020 is an abundant number, since it is smaller than the sum of its proper divisors (233759948).

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

200180020 is a wasteful number, since it uses less digits than its factorization.

200180020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322911 (or 322909 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 200180020 is about 14148.4988603032. The cubic root of 200180020 is about 584.9789555826.

The spelling of 200180020 in words is "two hundred million, one hundred eighty thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 322871 645742 1291484 1614355 3228710 6457420 10009001 20018002 40036004 50045005 100090010 200180020