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30545384 = 2353611181
BaseRepresentation
bin111010010000…
…1010111101000
32010110212101112
41310201113220
530304423014
63010405452
7520426412
oct164412750
963425345
1030545384
1116273221
12a290888
1364362bc
1440b19b2
152a3573e
hex1d215e8

30545384 has 32 divisors (see below), whose sum is σ = 59360040. Its totient is φ = 14726400.

The previous prime is 30545377. The next prime is 30545393. The reversal of 30545384 is 48354503.

It can be written as a sum of positive squares in 4 ways, for example, as 27269284 + 3276100 = 5222^2 + 1810^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 30545384.

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, 25274 + ... + 26454.

Almost surely, 230545384 is an apocalyptic number.

It is an amenable number.

30545384 is a deficient number, since it is larger than the sum of its proper divisors (28814656).

30545384 is a wasteful number, since it uses less digits than its factorization.

30545384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 30545384 is about 5526.7878555269. The cubic root of 30545384 is about 312.5948819088.

Adding to 30545384 its reverse (48354503), we get a palindrome (78899887).

The spelling of 30545384 in words is "thirty million, five hundred forty-five thousand, three hundred eighty-four".

Divisors: 1 2 4 8 53 61 106 122 212 244 424 488 1181 2362 3233 4724 6466 9448 12932 25864 62593 72041 125186 144082 250372 288164 500744 576328 3818173 7636346 15272692 30545384