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31020010230230 = 25739043734761
BaseRepresentation
bin1110000110110011010001…
…01100001101000111010110
311001211111001211220012110022
413003121220230031013112
513031212440104331410
6145550221310225142
76351056525321000
oct703315054150726
9131744054805408
1031020010230230
11997a5700a30aa
12358ba767b51b2
131440236254cb8
1479353b1bd370
1538bd7d12c455
hex1c3668b0d1d6

31020010230230 has 32 divisors (see below), whose sum is σ = 65114890286400. Its totient is φ = 10635432077760.

The previous prime is 31020010230113. The next prime is 31020010230259. The reversal of 31020010230230 is 3203201002013.

It is a junction number, because it is equal to n+sod(n) for n = 31020010230199 and 31020010230208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4521863951 + ... + 4521870810.

It is an arithmetic number, because the mean of its divisors is an integer number (2034840321450).

Almost surely, 231020010230230 is an apocalyptic number.

31020010230230 is an abundant number, since it is smaller than the sum of its proper divisors (34094880056170).

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

31020010230230 is an equidigital number, since it uses as much as digits as its factorization.

31020010230230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043734789 (or 9043734775 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31020010230230 its reverse (3203201002013), we get a palindrome (34223211232243).

The spelling of 31020010230230 in words is "thirty-one trillion, twenty billion, ten million, two hundred thirty thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 343 490 686 1715 3430 9043734761 18087469522 45218673805 63306143327 90437347610 126612286654 316530716635 443143003289 633061433270 886286006578 2215715016445 3102001023023 4431430032890 6204002046046 15510005115115 31020010230230