Search a number
-
+
30394790 = 2515120129
BaseRepresentation
bin111001111110…
…0100110100110
32010012012210222
41303330212212
530240113130
63003244342
7516231356
oct163744646
963165728
1030394790
1116180068
12a2196b2
1363b28aa
144072b66
152a05ce5
hex1cfc9a6

30394790 has 16 divisors (see below), whose sum is σ = 55075680. Its totient is φ = 12076800.

The previous prime is 30394789. The next prime is 30394807. The reversal of 30394790 is 9749303.

It is a self number, because there is not a number n which added to its sum of digits gives 30394790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8555 + ... + 11574.

It is an arithmetic number, because the mean of its divisors is an integer number (3442230).

Almost surely, 230394790 is an apocalyptic number.

30394790 is a deficient number, since it is larger than the sum of its proper divisors (24680890).

30394790 is a wasteful number, since it uses less digits than its factorization.

30394790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20287.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 30394790 is about 5513.1470141835. The cubic root of 30394790 is about 312.0803198317.

The spelling of 30394790 in words is "thirty million, three hundred ninety-four thousand, seven hundred ninety".

Divisors: 1 2 5 10 151 302 755 1510 20129 40258 100645 201290 3039479 6078958 15197395 30394790