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30886734 = 235147789
BaseRepresentation
bin111010111010…
…0101101001110
32011010012122010
41311310231032
530401333414
63022002050
7523350534
oct165645516
964105563
1030886734
111648672a
12a416326
136525798
144160154
152aa1959
hex1d74b4e

30886734 has 8 divisors (see below), whose sum is σ = 61773480. Its totient is φ = 10295576.

The previous prime is 30886733. The next prime is 30886747. The reversal of 30886734 is 43768803.

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

30886734 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 30886692 and 30886701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30886733) 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, 2573889 + ... + 2573900.

It is an arithmetic number, because the mean of its divisors is an integer number (7721685).

Almost surely, 230886734 is an apocalyptic number.

30886734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30886734 is a wasteful number, since it uses less digits than its factorization.

30886734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147794.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 30886734 is about 5557.5834676593. The cubic root of 30886734 is about 313.7550051846.

The spelling of 30886734 in words is "thirty million, eight hundred eighty-six thousand, seven hundred thirty-four".

Divisors: 1 2 3 6 5147789 10295578 15443367 30886734