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232820 = 22571663
BaseRepresentation
bin111000110101110100
3102211100222
4320311310
524422240
64553512
71656530
oct706564
9384328
10232820
11149a15
12b2898
1381c83
1460bc0
1548eb5
hex38d74

232820 has 24 divisors (see below), whose sum is σ = 559104. Its totient is φ = 79776.

The previous prime is 232819. The next prime is 232823. The reversal of 232820 is 28232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692 + ... + 971.

It is an arithmetic number, because the mean of its divisors is an integer number (23296).

2232820 is an apocalyptic number.

232820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232820 is an abundant number, since it is smaller than the sum of its proper divisors (326284).

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

232820 is a wasteful number, since it uses less digits than its factorization.

232820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 232820 is about 482.5142484943. The cubic root of 232820 is about 61.5186450617.

The spelling of 232820 in words is "two hundred thirty-two thousand, eight hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1663 3326 6652 8315 11641 16630 23282 33260 46564 58205 116410 232820