Search a number
-
+
30740124 = 2233178081
BaseRepresentation
bin111010101000…
…0111010011100
32010211202112010
41311100322130
530332140444
63014511220
7522200232
oct165207234
963752463
1030740124
1116396568
12a365510
1364a3b2c
144122952
152a732b9
hex1d50e9c

30740124 has 24 divisors (see below), whose sum is σ = 71962128. Its totient is φ = 10213120.

The previous prime is 30740117. The next prime is 30740147. The reversal of 30740124 is 42104703.

It is a self number, because there is not a number n which added to its sum of digits gives 30740124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237 + ... + 7844.

It is an arithmetic number, because the mean of its divisors is an integer number (2998422).

Almost surely, 230740124 is an apocalyptic number.

It is an amenable number.

30740124 is an abundant number, since it is smaller than the sum of its proper divisors (41222004).

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

30740124 is a wasteful number, since it uses less digits than its factorization.

30740124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8405 (or 8403 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 30740124 is about 5544.3776927623. The cubic root of 30740124 is about 313.2577842099.

Adding to 30740124 its reverse (42104703), we get a palindrome (72844827).

The spelling of 30740124 in words is "thirty million, seven hundred forty thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 317 634 951 1268 1902 3804 8081 16162 24243 32324 48486 96972 2561677 5123354 7685031 10246708 15370062 30740124