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31134042506 = 272396689573
BaseRepresentation
bin11100111111101110…
…111100100110001010
32222100210012020020102
4130333232330212022
51002230303330011
622145222325402
72151346665140
oct347756744612
988323166212
1031134042506
111222739aa46
12604a889862
132c22304a78
141714cc9590
15c2348673b
hex73fbbc98a

31134042506 has 16 divisors (see below), whose sum is σ = 55693194624. Its totient is φ = 12763023504.

The previous prime is 31134042497. The next prime is 31134042551. The reversal of 31134042506 is 60524043113.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48344465 + ... + 48345108.

It is an arithmetic number, because the mean of its divisors is an integer number (3480824664).

Almost surely, 231134042506 is an apocalyptic number.

31134042506 is a deficient number, since it is larger than the sum of its proper divisors (24559152118).

31134042506 is a wasteful number, since it uses less digits than its factorization.

31134042506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96689605.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 31134042506 its reverse (60524043113), we get a palindrome (91658085619).

The spelling of 31134042506 in words is "thirty-one billion, one hundred thirty-four million, forty-two thousand, five hundred six".

Divisors: 1 2 7 14 23 46 161 322 96689573 193379146 676827011 1353654022 2223860179 4447720358 15567021253 31134042506