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323013213 = 32157228601
BaseRepresentation
bin10011010000001…
…100101001011101
3211111210202211100
4103100030221131
51130142410323
652015143313
711001365325
oct2320145135
9744722740
10323013213
11156372676
1290214b39
1351bc78a3
1430c84285
151d557943
hex1340ca5d

323013213 has 12 divisors (see below), whose sum is σ = 469548508. Its totient is φ = 213969600.

The previous prime is 323013203. The next prime is 323013221. The reversal of 323013213 is 312310323.

It can be written as a sum of positive squares in 2 ways, for example, as 221950404 + 101062809 = 14898^2 + 10053^2 .

It is not a de Polignac number, because 323013213 - 213 = 323005021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323013203) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 112888 + ... + 115713.

Almost surely, 2323013213 is an apocalyptic number.

It is an amenable number.

323013213 is a deficient number, since it is larger than the sum of its proper divisors (146535295).

323013213 is a wasteful number, since it uses less digits than its factorization.

323013213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228764 (or 228761 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 323013213 is about 17972.5683473454. The cubic root of 323013213 is about 686.1305592042.

Adding to 323013213 its reverse (312310323), we get a palindrome (635323536).

The spelling of 323013213 in words is "three hundred twenty-three million, thirteen thousand, two hundred thirteen".

Divisors: 1 3 9 157 471 1413 228601 685803 2057409 35890357 107671071 323013213