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210242932180 = 22510512146609
BaseRepresentation
bin1100001111001101110…
…1001000110111010100
3202002200012011112220221
43003303131020313110
511421034142312210
6240330111404124
721122005303021
oct3036335106724
9662605145827
10210242932180
1181188721806
12348b5b23644
1316a97445ca8
14a266600548
15570781c1da
hex30f3748dd4

210242932180 has 12 divisors (see below), whose sum is σ = 441510157620. Its totient is φ = 84097172864.

The previous prime is 210242932157. The next prime is 210242932187. The reversal of 210242932180 is 81239242012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 101165980356 + 109076951824 = 318066^2 + 330268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210242932187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5256073285 + ... + 5256073324.

It is an arithmetic number, because the mean of its divisors is an integer number (36792513135).

Almost surely, 2210242932180 is an apocalyptic number.

210242932180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210242932180 is an abundant number, since it is smaller than the sum of its proper divisors (231267225440).

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

210242932180 is a wasteful number, since it uses less digits than its factorization.

210242932180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10512146618 (or 10512146616 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 210242932180 in words is "two hundred ten billion, two hundred forty-two million, nine hundred thirty-two thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 10512146609 21024293218 42048586436 52560733045 105121466090 210242932180