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231534013321310 = 25717194566397749
BaseRepresentation
bin110100101001010000110110…
…100111100001000001011110
31010100210102202111000201000012
4310221100312213201001132
5220321423124402240220
62140233131330003222
766524531456056460
oct6451206647410136
91110712674021005
10231534013321310
1167857029493497
1221b74a14716512
139c267437b374b
14412643daa6130
151bb7ae7343ac5
hexd294369e105e

231534013321310 has 32 divisors (see below), whose sum is σ = 504316102968000. Its totient is φ = 74713496735232.

The previous prime is 231534013321309. The next prime is 231534013321313. The reversal of 231534013321310 is 13123310435132.

It is a super-2 number, since 2×2315340133213102 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231534013321313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97283197685 + ... + 97283200064.

It is an arithmetic number, because the mean of its divisors is an integer number (15759878217750).

Almost surely, 2231534013321310 is an apocalyptic number.

231534013321310 is an abundant number, since it is smaller than the sum of its proper divisors (272782089646690).

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

231534013321310 is a wasteful number, since it uses less digits than its factorization.

231534013321310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194566397780.

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 231534013321310 its reverse (13123310435132), we get a palindrome (244657323756442).

The spelling of 231534013321310 in words is "two hundred thirty-one trillion, five hundred thirty-four billion, thirteen million, three hundred twenty-one thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 595 1190 194566397749 389132795498 972831988745 1361964784243 1945663977490 2723929568486 3307628761733 6615257523466 6809823921215 13619647842430 16538143808665 23153401332131 33076287617330 46306802664262 115767006660655 231534013321310