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213132294 = 23230738569
BaseRepresentation
bin11001011010000…
…10010000000110
3112212001020112200
430231002100012
5414030213134
633052055330
75165410644
oct1455022006
9485036480
10213132294
11aa3424a1
125b464546
13352047ab
1420440194
1513aa0499
hexcb42406

213132294 has 24 divisors (see below), whose sum is σ = 463302840. Its totient is φ = 70810848.

The previous prime is 213132287. The next prime is 213132299. The reversal of 213132294 is 492231312.

It is a happy number.

213132294 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213132299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13759 + ... + 24810.

It is an arithmetic number, because the mean of its divisors is an integer number (19304285).

Almost surely, 2213132294 is an apocalyptic number.

213132294 is an abundant number, since it is smaller than the sum of its proper divisors (250170546).

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

213132294 is a wasteful number, since it uses less digits than its factorization.

213132294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38884 (or 38881 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 213132294 is about 14599.0511335497. The cubic root of 213132294 is about 597.3328783373.

The spelling of 213132294 in words is "two hundred thirteen million, one hundred thirty-two thousand, two hundred ninety-four".

Divisors: 1 2 3 6 9 18 307 614 921 1842 2763 5526 38569 77138 115707 231414 347121 694242 11840683 23681366 35522049 71044098 106566147 213132294