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213030232 = 23231157773
BaseRepresentation
bin11001011001010…
…01010101011000
3112211212001112121
430230221111120
5414013431412
633045551024
75164504252
oct1454512530
9484761477
10213030232
11aa282848
125b415474
133519a1bc
1420414cd2
1513a80107
hexcb29558

213030232 has 16 divisors (see below), whose sum is σ = 416798640. Its totient is φ = 101883936.

The previous prime is 213030229. The next prime is 213030287. The reversal of 213030232 is 232030312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578703 + ... + 579070.

It is an arithmetic number, because the mean of its divisors is an integer number (26049915).

Almost surely, 2213030232 is an apocalyptic number.

It is an amenable number.

213030232 is a deficient number, since it is larger than the sum of its proper divisors (203768408).

213030232 is a wasteful number, since it uses less digits than its factorization.

213030232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157802 (or 1157798 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 213030232 is about 14595.5552138314. Note that the first 3 decimals coincide. The cubic root of 213030232 is about 597.2375154666.

Adding to 213030232 its reverse (232030312), we get a palindrome (445060544).

The spelling of 213030232 in words is "two hundred thirteen million, thirty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 23 46 92 184 1157773 2315546 4631092 9262184 26628779 53257558 106515116 213030232