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320233030 = 25132199973
BaseRepresentation
bin10011000101100…
…101111001000110
3211022120112010121
4103011211321012
51123434424110
651435412154
710635635665
oct2305457106
9738515117
10320233030
111548438a7
128b2b405a
1351463300
143075cddc
151d1a8cda
hex13165e46

320233030 has 48 divisors (see below), whose sum is σ = 657087120. Its totient is φ = 112005504.

The previous prime is 320233027. The next prime is 320233031. The reversal of 320233030 is 30332023.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 320232995 and 320233013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320233031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27124 + ... + 37096.

It is an arithmetic number, because the mean of its divisors is an integer number (13689315).

Almost surely, 2320233030 is an apocalyptic number.

320233030 is an abundant number, since it is smaller than the sum of its proper divisors (336854090).

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

320233030 is a wasteful number, since it uses less digits than its factorization.

320233030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10025 (or 10012 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 16.

The square root of 320233030 is about 17895.0560211473. The cubic root of 320233030 is about 684.1563699241.

Adding to 320233030 its reverse (30332023), we get a palindrome (350565053).

It can be divided in two parts, 32023 and 3030, that added together give a palindrome (35053).

The spelling of 320233030 in words is "three hundred twenty million, two hundred thirty-three thousand, thirty".

Divisors: 1 2 5 10 13 19 26 38 65 95 130 169 190 247 338 494 845 1235 1690 2470 3211 6422 9973 16055 19946 32110 49865 99730 129649 189487 259298 378974 648245 947435 1296490 1685437 1894870 2463331 3370874 4926662 8427185 12316655 16854370 24633310 32023303 64046606 160116515 320233030