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203213311230 = 23517974107809
BaseRepresentation
bin1011110101000001110…
…1010000110011111110
3201102112021200210211110
42331100131100303332
511312140101424410
6233204354302450
720452546434216
oct2752035206376
9642467623743
10203213311230
1179200686516
1233473887a26
1316216c6b777
149b9ab73246
155445601720
hex2f50750cfe

203213311230 has 64 divisors (see below), whose sum is σ = 521724732480. Its totient is φ = 50476744704.

The previous prime is 203213311229. The next prime is 203213311241. The reversal of 203213311230 is 32113312302.

It is a super-2 number, since 2×2032133112302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203213311197 and 203213311206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2004435 + ... + 2103374.

It is an arithmetic number, because the mean of its divisors is an integer number (8151948945).

Almost surely, 2203213311230 is an apocalyptic number.

203213311230 is an abundant number, since it is smaller than the sum of its proper divisors (318511421250).

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

203213311230 is a wasteful number, since it uses less digits than its factorization.

203213311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107933.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 203213311230 its reverse (32113312302), we get a palindrome (235326623532).

The spelling of 203213311230 in words is "two hundred three billion, two hundred thirteen million, three hundred eleven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 97 102 170 194 255 291 485 510 582 970 1455 1649 2910 3298 4947 8245 9894 16490 24735 49470 4107809 8215618 12323427 20539045 24646854 41078090 61617135 69832753 123234270 139665506 209498259 349163765 398457473 418996518 698327530 796914946 1047491295 1195372419 1992287365 2094982590 2390744838 3984574730 5976862095 6773777041 11953724190 13547554082 20321331123 33868885205 40642662246 67737770410 101606655615 203213311230