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31134103243 = 295631906909
BaseRepresentation
bin11100111111101111…
…001011011011001011
32222100210022022112221
4130333233023123023
51002230312300433
622145223514511
72151350340205
oct347757133313
988323268487
1031134103243
1112227431641
12604a8b8a37
132c223265c9
141714d03775
15c2349972d
hex73fbcb6cb

31134103243 has 8 divisors (see below), whose sum is σ = 32264917200. Its totient is φ = 30007104288.

The previous prime is 31134103223. The next prime is 31134103271. The reversal of 31134103243 is 34230143113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31134103243 - 217 = 31133972171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31134103223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937128 + ... + 969781.

It is an arithmetic number, because the mean of its divisors is an integer number (4033114650).

Almost surely, 231134103243 is an apocalyptic number.

31134103243 is a deficient number, since it is larger than the sum of its proper divisors (1130813957).

31134103243 is a wasteful number, since it uses less digits than its factorization.

31134103243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907501.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31134103243 its reverse (34230143113), we get a palindrome (65364246356).

The spelling of 31134103243 in words is "thirty-one billion, one hundred thirty-four million, one hundred three thousand, two hundred forty-three".

Divisors: 1 29 563 16327 1906909 55300361 1073589767 31134103243