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212303121352 = 23729130728523
BaseRepresentation
bin1100010110111001000…
…0001000101111001000
3202021222202210000011121
43011232100020233020
511434244044340402
6241310344405024
721224032520320
oct3055620105710
9667882700147
10212303121352
1182045639393
123518ba76774
131703520543a
14a3c0086280
1557c861d837
hex316e408bc8

212303121352 has 32 divisors (see below), whose sum is σ = 470622686400. Its totient is φ = 87849566784.

The previous prime is 212303121311. The next prime is 212303121353. The reversal of 212303121352 is 253121303212.

It is not an unprimeable number, because it can be changed into a prime (212303121353) 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, 65362638 + ... + 65365885.

It is an arithmetic number, because the mean of its divisors is an integer number (14706958950).

Almost surely, 2212303121352 is an apocalyptic number.

It is an amenable number.

212303121352 is an abundant number, since it is smaller than the sum of its proper divisors (258319565048).

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

212303121352 is a wasteful number, since it uses less digits than its factorization.

212303121352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130728565 (or 130728561 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 212303121352 its reverse (253121303212), we get a palindrome (465424424564).

The spelling of 212303121352 in words is "two hundred twelve billion, three hundred three million, one hundred twenty-one thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 29 56 58 116 203 232 406 812 1624 130728523 261457046 522914092 915099661 1045828184 1830199322 3660398644 3791127167 7320797288 7582254334 15164508668 26537890169 30329017336 53075780338 106151560676 212303121352