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230220021320 = 23535471622639
BaseRepresentation
bin1101011001101000101…
…1101011111001001000
3211000020102120211101022
43112122023223321020
512232442311140240
6253432302012012
722430031615302
oct3263213537110
9730212524338
10230220021320
11896aa222533
1238750277008
131892c15b5b3
14b1dd840972
155ec655e9b5
hex359a2ebe48

230220021320 has 32 divisors (see below), whose sum is σ = 518141404800. Its totient is φ = 92061989568.

The previous prime is 230220021301. The next prime is 230220021323. The reversal of 230220021320 is 23120022032.

It is not an unprimeable number, because it can be changed into a prime (230220021323) 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, 669440 + ... + 953199.

It is an arithmetic number, because the mean of its divisors is an integer number (16191918900).

Almost surely, 2230220021320 is an apocalyptic number.

230220021320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230220021320 is an abundant number, since it is smaller than the sum of its proper divisors (287921383480).

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

230220021320 is a wasteful number, since it uses less digits than its factorization.

230220021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626197 (or 1626193 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 230220021320 its reverse (23120022032), we get a palindrome (253340043352).

The spelling of 230220021320 in words is "two hundred thirty billion, two hundred twenty million, twenty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 3547 7094 14188 17735 28376 35470 70940 141880 1622639 3245278 6490556 8113195 12981112 16226390 32452780 64905560 5755500533 11511001066 23022002132 28777502665 46044004264 57555005330 115110010660 230220021320