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213090952 = 23235321851
BaseRepresentation
bin11001011001110…
…00001010001000
3112211222010211111
430230320022020
5414022402302
633051140104
75165146264
oct1454701210
9484863744
10213090952
11aa314428
125b444634
13351bba29
142042d0a4
1513a930d7
hexcb38288

213090952 has 32 divisors (see below), whose sum is σ = 424802880. Its totient is φ = 99985600.

The previous prime is 213090923. The next prime is 213090953. The reversal of 213090952 is 259090312.

It is not an unprimeable number, because it can be changed into a prime (213090953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174 + ... + 20677.

It is an arithmetic number, because the mean of its divisors is an integer number (13275090).

Almost surely, 2213090952 is an apocalyptic number.

It is an amenable number.

213090952 is a deficient number, since it is larger than the sum of its proper divisors (211711928).

213090952 is a wasteful number, since it uses less digits than its factorization.

213090952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21933 (or 21929 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 213090952 is about 14597.6351509414. The cubic root of 213090952 is about 597.2942536061.

The spelling of 213090952 in words is "two hundred thirteen million, ninety thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 23 46 53 92 106 184 212 424 1219 2438 4876 9752 21851 43702 87404 174808 502573 1005146 1158103 2010292 2316206 4020584 4632412 9264824 26636369 53272738 106545476 213090952