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210231310042 = 21312763667871
BaseRepresentation
bin1100001111001011000…
…0110011011011011010
3202002122101022002100101
43003302300303123122
511421023203410132
6240325014330014
721121504436155
oct3036260633332
9662571262311
10210231310042
1181182103936
12348b205990a
1316a94c06ca0
14a264c56c9c
1557067c37e7
hex30f2c336da

210231310042 has 16 divisors (see below), whose sum is σ = 342278479872. Its totient is φ = 96265819440.

The previous prime is 210231309983. The next prime is 210231310097. The reversal of 210231310042 is 240013132012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31830634 + ... + 31837237.

It is an arithmetic number, because the mean of its divisors is an integer number (21392404992).

Almost surely, 2210231310042 is an apocalyptic number.

210231310042 is a deficient number, since it is larger than the sum of its proper divisors (132047169830).

210231310042 is a wasteful number, since it uses less digits than its factorization.

210231310042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63668013.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 210231310042 its reverse (240013132012), we get a palindrome (450244442054).

The spelling of 210231310042 in words is "two hundred ten billion, two hundred thirty-one million, three hundred ten thousand, forty-two".

Divisors: 1 2 13 26 127 254 1651 3302 63667871 127335742 827682323 1655364646 8085819617 16171639234 105115655021 210231310042