Search a number
-
+
30894822 = 2327359683
BaseRepresentation
bin111010111011…
…0101011100110
32011010121201200
41311312223212
530402113242
63022103330
7523413240
oct165665346
964117650
1030894822
1116491812
12a41ab46
13652937a
144163090
152aa404c
hex1d76ae6

30894822 has 48 divisors (see below), whose sum is σ = 76826880. Its totient is φ = 8789616.

The previous prime is 30894821. The next prime is 30894883. The reversal of 30894822 is 22849803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30894821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44893 + ... + 45575.

It is an arithmetic number, because the mean of its divisors is an integer number (1600560).

Almost surely, 230894822 is an apocalyptic number.

30894822 is an abundant number, since it is smaller than the sum of its proper divisors (45932058).

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

30894822 is a wasteful number, since it uses less digits than its factorization.

30894822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 30894822 is about 5558.3110744182. The cubic root of 30894822 is about 313.7823894225.

The spelling of 30894822 in words is "thirty million, eight hundred ninety-four thousand, eight hundred twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 359 683 718 1077 1366 2049 2154 2513 3231 4098 4781 5026 6147 6462 7539 9562 12294 14343 15078 22617 28686 43029 45234 86058 245197 490394 735591 1471182 1716379 2206773 3432758 4413546 5149137 10298274 15447411 30894822