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231012212300 = 22522310122123
BaseRepresentation
bin1101011100100101100…
…1101001111001001100
3211002021122020022002222
43113021121221321030
512241103111243200
6254043041234512
722455461256062
oct3271131517114
9732248208088
10231012212300
1189a7640a321
1238931632a38
1318a27308c5c
14b276b36032
156020d92d85
hex35c9669e4c

231012212300 has 18 divisors (see below), whose sum is σ = 501296500908. Its totient is φ = 92404884880.

The previous prime is 231012212297. The next prime is 231012212363. The reversal of 231012212300 is 3212210132.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1155060962 + ... + 1155061161.

It is an arithmetic number, because the mean of its divisors is an integer number (27849805606).

Almost surely, 2231012212300 is an apocalyptic number.

231012212300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231012212300 is an abundant number, since it is smaller than the sum of its proper divisors (270284288608).

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

231012212300 is a wasteful number, since it uses less digits than its factorization.

231012212300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310122137 (or 2310122130 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 231012212300 its reverse (3212210132), we get a palindrome (234224422432).

The spelling of 231012212300 in words is "two hundred thirty-one billion, twelve million, two hundred twelve thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2310122123 4620244246 9240488492 11550610615 23101221230 46202442460 57753053075 115506106150 231012212300