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397696230 = 2355163661
BaseRepresentation
bin10111101101000…
…101110011100110
31000201100001200000
4113231011303212
51303302234410
6103244002130
712566235141
oct2755056346
91021301600
10397696230
11194542078
12b1230346
1364515b19
143ab65058
1524daadc0
hex17b45ce6

397696230 has 48 divisors (see below), whose sum is σ = 1072313424. Its totient is φ = 106051680.

The previous prime is 397696213. The next prime is 397696253. The reversal of 397696230 is 32696793.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79401 + ... + 84260.

It is an arithmetic number, because the mean of its divisors is an integer number (22339863).

Almost surely, 2397696230 is an apocalyptic number.

397696230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

397696230 is an abundant number, since it is smaller than the sum of its proper divisors (674617194).

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

397696230 is a wasteful number, since it uses less digits than its factorization.

397696230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163683 (or 163671 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

The square root of 397696230 is about 19942.3225828889. The cubic root of 397696230 is about 735.3890485107.

The spelling of 397696230 in words is "three hundred ninety-seven million, six hundred ninety-six thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 810 1215 2430 163661 327322 490983 818305 981966 1472949 1636610 2454915 2945898 4418847 4909830 7364745 8837694 13256541 14729490 22094235 26513082 39769623 44188470 66282705 79539246 132565410 198848115 397696230