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31103670001 = 168391184711
BaseRepresentation
bin11100111101111011…
…000101011011110001
32222021200001010222211
4130331323011123301
51002200014420001
622142215332121
72150530555435
oct347573053361
988250033884
1031103670001
11122112356a8
126040681041
132c18c2c381
141710c609c5
15c20987351
hex73dec56f1

31103670001 has 4 divisors (see below), whose sum is σ = 31104023104. Its totient is φ = 31103316900.

The previous prime is 31103669957. The next prime is 31103670019. The reversal of 31103670001 is 10007630113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 31103670001 - 27 = 31103669873 is a prime.

It is a super-2 number, since 2×311036700012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31103670041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76036 + ... + 260746.

It is an arithmetic number, because the mean of its divisors is an integer number (7776005776).

Almost surely, 231103670001 is an apocalyptic number.

It is an amenable number.

31103670001 is a deficient number, since it is larger than the sum of its proper divisors (353103).

31103670001 is a wasteful number, since it uses less digits than its factorization.

31103670001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353102.

The product of its (nonzero) digits is 378, while the sum is 22.

The spelling of 31103670001 in words is "thirty-one billion, one hundred three million, six hundred seventy thousand, one".

Divisors: 1 168391 184711 31103670001