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13321230 = 2351334157
BaseRepresentation
bin110010110100…
…010000001110
3221001210021220
4302310100032
511402234410
61153304210
7221141256
oct62642016
927053256
1013321230
11757948a
124565066
1329b54b0
141aaa966
151282070
hexcb440e

13321230 has 32 divisors (see below), whose sum is σ = 34431264. Its totient is φ = 3278976.

The previous prime is 13321229. The next prime is 13321279. The reversal of 13321230 is 3212331.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16689 + ... + 17468.

It is an arithmetic number, because the mean of its divisors is an integer number (1075977).

Almost surely, 213321230 is an apocalyptic number.

13321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13321230 is an abundant number, since it is smaller than the sum of its proper divisors (21110034).

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

13321230 is a wasteful number, since it uses less digits than its factorization.

13321230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34180.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13321230 is about 3649.8260232510. The cubic root of 13321230 is about 237.0544481357.

Adding to 13321230 its reverse (3212331), we get a palindrome (16533561).

The spelling of 13321230 in words is "thirteen million, three hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 34157 68314 102471 170785 204942 341570 444041 512355 888082 1024710 1332123 2220205 2664246 4440410 6660615 13321230