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30890014 = 237194153
BaseRepresentation
bin111010111010…
…1100000011110
32011010101010121
41311311200132
530401440024
63022025154
7523363231
oct165654036
964111117
1030890014
1116489141
12a4181ba
13652711c
144161418
152aa28e4
hex1d7581e

30890014 has 8 divisors (see below), whose sum is σ = 46358640. Its totient is φ = 15437136.

The previous prime is 30890011. The next prime is 30890021. The reversal of 30890014 is 41009803.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30890011) 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, 5362 + ... + 9514.

It is an arithmetic number, because the mean of its divisors is an integer number (5794830).

Almost surely, 230890014 is an apocalyptic number.

30890014 is a deficient number, since it is larger than the sum of its proper divisors (15468626).

30890014 is a wasteful number, since it uses less digits than its factorization.

30890014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7874.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 30890014 is about 5557.8785521096. The cubic root of 30890014 is about 313.7661111392.

Adding to 30890014 its reverse (41009803), we get a palindrome (71899817).

The spelling of 30890014 in words is "thirty million, eight hundred ninety thousand, fourteen".

Divisors: 1 2 3719 4153 7438 8306 15445007 30890014