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470187220 = 22523509361
BaseRepresentation
bin11100000001100…
…111110011010100
31012202201222121111
4130001213303110
51430331442340
6114353424404
714436345136
oct3401476324
91182658544
10470187220
11221454688
1211156b104
13765473b9
1446635056
152b429aea
hex1c067cd4

470187220 has 12 divisors (see below), whose sum is σ = 987393204. Its totient is φ = 188074880.

The previous prime is 470187217. The next prime is 470187251. The reversal of 470187220 is 22781074.

It can be written as a sum of positive squares in 2 ways, for example, as 116596804 + 353590416 = 10798^2 + 18804^2 .

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, 11754661 + ... + 11754700.

It is an arithmetic number, because the mean of its divisors is an integer number (82282767).

Almost surely, 2470187220 is an apocalyptic number.

It is an amenable number.

470187220 is an abundant number, since it is smaller than the sum of its proper divisors (517205984).

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

470187220 is a wasteful number, since it uses less digits than its factorization.

470187220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23509370 (or 23509368 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 470187220 is about 21683.8008660843. The cubic root of 470187220 is about 777.6012323256.

The spelling of 470187220 in words is "four hundred seventy million, one hundred eighty-seven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 23509361 47018722 94037444 117546805 235093610 470187220