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31104542102 = 215552271051
BaseRepresentation
bin11100111101111110…
…011010010110010110
32222021201200110021212
4130331332122112112
51002200230321402
622142250141422
72150541150134
oct347576322626
988251613255
1031104542102
1112211780947
126040a21872
132c191762ca
14171100a754
15c20aaa952
hex73df9a596

31104542102 has 4 divisors (see below), whose sum is σ = 46656813156. Its totient is φ = 15552271050.

The previous prime is 31104542101. The next prime is 31104542149. The reversal of 31104542102 is 20124540113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20124540113 = 162671237139.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31104542101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7776135524 + ... + 7776135527.

It is an arithmetic number, because the mean of its divisors is an integer number (11664203289).

Almost surely, 231104542102 is an apocalyptic number.

31104542102 is a deficient number, since it is larger than the sum of its proper divisors (15552271054).

31104542102 is a wasteful number, since it uses less digits than its factorization.

31104542102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15552271053.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 31104542102 in words is "thirty-one billion, one hundred four million, five hundred forty-two thousand, one hundred two".

Divisors: 1 2 15552271051 31104542102