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212303211230 = 251117373304373
BaseRepresentation
bin1100010110111001000…
…0011110101011011110
3202021222202221120110102
43011232100132223132
511434244110224410
6241310350341102
721224033343335
oct3055620365336
9667882846412
10212303211230
118204569a970
123518baba792
1317035237316
14a3c00aad1c
1557c863a2a5
hex316e41eade

212303211230 has 64 divisors (see below), whose sum is σ = 442593885888. Its totient is φ = 72464885760.

The previous prime is 212303211229. The next prime is 212303211287. The reversal of 212303211230 is 32112303212.

It is a super-2 number, since 2×2123032112302 (a number of 23 digits) contains 22 as substring.

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, 545324 + ... + 849696.

It is an arithmetic number, because the mean of its divisors is an integer number (6915529467).

Almost surely, 2212303211230 is an apocalyptic number.

212303211230 is an abundant number, since it is smaller than the sum of its proper divisors (230290674658).

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

212303211230 is a wasteful number, since it uses less digits than its factorization.

212303211230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304781.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212303211230 its reverse (32112303212), we get a palindrome (244415514442).

The spelling of 212303211230 in words is "two hundred twelve billion, three hundred three million, two hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 170 187 373 374 746 935 1865 1870 3730 4103 6341 8206 12682 20515 31705 41030 63410 69751 139502 304373 348755 608746 697510 1521865 3043730 3348103 5174341 6696206 10348682 16740515 25871705 33481030 51743410 56917751 113531129 113835502 227062258 284588755 567655645 569177510 1135311290 1248842419 1930029193 2497684838 3860058386 6244212095 9650145965 12488424190 19300291930 21230321123 42460642246 106151605615 212303211230