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31134123234 = 2321729673513
BaseRepresentation
bin11100111111101111…
…010000010011100010
32222100210100022222100
4130333233100103202
51002230313420414
622145224151230
72151350452404
oct347757202342
988323308870
1031134123234
1112227445665
12604a908516
132c22332736
141714d0ab74
15c234a0609
hex73fbd04e2

31134123234 has 12 divisors (see below), whose sum is σ = 67457267046. Its totient is φ = 10378041072.

The previous prime is 31134123227. The next prime is 31134123239. The reversal of 31134123234 is 43232143113.

It is a happy number.

31134123234 is a `hidden beast` number, since 3 + 1 + 13 + 412 + 3 + 234 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19405883025 + 11728240209 = 139305^2 + 108297^2 .

It is a super-3 number, since 3×311341232343 (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31134123198 and 31134123207.

It is not an unprimeable number, because it can be changed into a prime (31134123239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 864836739 + ... + 864836774.

Almost surely, 231134123234 is an apocalyptic number.

31134123234 is an abundant number, since it is smaller than the sum of its proper divisors (36323143812).

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

31134123234 is a wasteful number, since it uses less digits than its factorization.

31134123234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729673521 (or 1729673518 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 31134123234 its reverse (43232143113), we get a palindrome (74366266347).

The spelling of 31134123234 in words is "thirty-one billion, one hundred thirty-four million, one hundred twenty-three thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 18 1729673513 3459347026 5189020539 10378041078 15567061617 31134123234