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31983107 = 1310922571
BaseRepresentation
bin111101000000…
…0011000000011
32020011220120112
41322000120003
531141424412
63101301535
7535565132
oct172003003
966156515
1031983107
1117065422
12a8648ab
13681a820
144367919
152c1b722
hex1e80603

31983107 has 8 divisors (see below), whose sum is σ = 34760880. Its totient is φ = 29250720.

The previous prime is 31983089. The next prime is 31983109. The reversal of 31983107 is 70138913.

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 31983107 - 26 = 31983043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31983109) 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, 9869 + ... + 12702.

It is an arithmetic number, because the mean of its divisors is an integer number (4345110).

Almost surely, 231983107 is an apocalyptic number.

31983107 is a deficient number, since it is larger than the sum of its proper divisors (2777773).

31983107 is a wasteful number, since it uses less digits than its factorization.

31983107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22693.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 31983107 is about 5655.3609080235. The cubic root of 31983107 is about 317.4243339642.

The spelling of 31983107 in words is "thirty-one million, nine hundred eighty-three thousand, one hundred seven".

Divisors: 1 13 109 1417 22571 293423 2460239 31983107