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213372404 = 2277620443
BaseRepresentation
bin11001011011111…
…00110111110100
3112212111102220122
430231330313310
5414110404104
633101151112
75200430660
oct1455746764
9485442818
10213372404
11aa496933
125b55b498
1335289b7b
14204a38a0
1513aeb6be
hexcb7cdf4

213372404 has 12 divisors (see below), whose sum is σ = 426744864. Its totient is φ = 91445304.

The previous prime is 213372373. The next prime is 213372461. The reversal of 213372404 is 404273312.

213372404 is an admirable number.

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, 3810194 + ... + 3810249.

It is an arithmetic number, because the mean of its divisors is an integer number (35562072).

Almost surely, 2213372404 is an apocalyptic number.

It is an amenable number.

213372404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

213372404 is a wasteful number, since it uses less digits than its factorization.

213372404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7620454 (or 7620452 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 213372404 is about 14607.2722984136. The cubic root of 213372404 is about 597.5571080374.

The spelling of 213372404 in words is "two hundred thirteen million, three hundred seventy-two thousand, four hundred four".

Divisors: 1 2 4 7 14 28 7620443 15240886 30481772 53343101 106686202 213372404