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31682028613 = 312963344921
BaseRepresentation
bin11101100000011001…
…010110010001000101
310000202222022210212011
4131200121112101011
51004341044403423
622315435454221
72201052541234
oct354031262105
9100688283764
1031682028613
1112488752024
1261822b7371
132cab9bb6c1
1417679b2b1b
15c5662cb0d
hex760656445

31682028613 has 8 divisors (see below), whose sum is σ = 32715161856. Its totient is φ = 30649591200.

The previous prime is 31682028611. The next prime is 31682028619.

31682028613 is nontrivially palindromic in base 10.

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 31682028613 - 21 = 31682028611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31682028611) 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, 80608 + ... + 264313.

It is an arithmetic number, because the mean of its divisors is an integer number (4089395232).

Almost surely, 231682028613 is an apocalyptic number.

It is an amenable number.

31682028613 is a deficient number, since it is larger than the sum of its proper divisors (1033133243).

31682028613 is a wasteful number, since it uses less digits than its factorization.

31682028613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347915.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 31682028613 in words is "thirty-one billion, six hundred eighty-two million, twenty-eight thousand, six hundred thirteen".

Divisors: 1 31 2963 91853 344921 10692551 1022000923 31682028613