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31013032330230 = 23523251439463881
BaseRepresentation
bin1110000110100110010001…
…10001101000001111110110
311001210211001112202011011120
413003103020301220033312
513031104142234031410
6145543105041444410
76350421565205136
oct703231061501766
9131724045664146
1031013032330230
11997760a2735a5
12358a649940706
13143c6936b92a2
14793078576ac6
1538bac072b570
hex1c34c8c683f6

31013032330230 has 256 divisors, whose sum is σ = 78412178718720. Its totient is φ = 7835224320000.

The previous prime is 31013032330151. The next prime is 31013032330237. The reversal of 31013032330230 is 3203323031013.

It is a self number, because there is not a number n which added to its sum of digits gives 31013032330230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013032330237) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 35202079390 + ... + 35202080270.

It is an arithmetic number, because the mean of its divisors is an integer number (306297573120).

Almost surely, 231013032330230 is an apocalyptic number.

31013032330230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31013032330230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39206089359360).

31013032330230 is an abundant number, since it is smaller than the sum of its proper divisors (47399146388490).

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

31013032330230 is a wasteful number, since it uses less digits than its factorization.

31013032330230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 31013032330230 its reverse (3203323031013), we get a palindrome (34216355361243).

The spelling of 31013032330230 in words is "thirty-one trillion, thirteen billion, thirty-two million, three hundred thirty thousand, two hundred thirty".