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31896045346 = 2111449820243
BaseRepresentation
bin11101101101001001…
…110000011100100010
310001022220000222121211
4131231021300130202
51010310341422341
622353002540334
72206261624564
oct355511603442
9101286028554
1031896045346
1112588538a60
126221b076aa
133014142919
1417881a3334
15c6a305181
hex76d270722

31896045346 has 8 divisors (see below), whose sum is σ = 52193528784. Its totient is φ = 14498202420.

The previous prime is 31896045277. The next prime is 31896045347. The reversal of 31896045346 is 64354069813.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31896045346.

It is not an unprimeable number, because it can be changed into a prime (31896045347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724910100 + ... + 724910143.

It is an arithmetic number, because the mean of its divisors is an integer number (6524191098).

Almost surely, 231896045346 is an apocalyptic number.

31896045346 is a deficient number, since it is larger than the sum of its proper divisors (20297483438).

31896045346 is a wasteful number, since it uses less digits than its factorization.

31896045346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449820256.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 31896045346 in words is "thirty-one billion, eight hundred ninety-six million, forty-five thousand, three hundred forty-six".

Divisors: 1 2 11 22 1449820243 2899640486 15948022673 31896045346