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31894414 = 217938071
BaseRepresentation
bin111100110101…
…0101110001110
32020000101220121
41321222232032
531131110124
63055335154
7535045426
oct171525616
966011817
1031894414
1117004822
12a8214ba
1367b9346
144343486
152c002e4
hex1e6ab8e

31894414 has 8 divisors (see below), whose sum is σ = 50655888. Its totient is φ = 15009120.

The previous prime is 31894409. The next prime is 31894417. The reversal of 31894414 is 41449813.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 938071 = 31894414 / (3 + 1 + 8 + 9 + 4 + 4 + 1 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 31894414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31894417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469002 + ... + 469069.

It is an arithmetic number, because the mean of its divisors is an integer number (6331986).

Almost surely, 231894414 is an apocalyptic number.

31894414 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31894414 is a deficient number, since it is larger than the sum of its proper divisors (18761474).

31894414 is a wasteful number, since it uses less digits than its factorization.

31894414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938090.

The product of its digits is 13824, while the sum is 34.

The square root of 31894414 is about 5647.5139663395. The cubic root of 31894414 is about 317.1306437067.

The spelling of 31894414 in words is "thirty-one million, eight hundred ninety-four thousand, four hundred fourteen".

Divisors: 1 2 17 34 938071 1876142 15947207 31894414