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13030530 = 2351034217
BaseRepresentation
bin110001101101…
…010010000010
3220112000112020
4301231102002
511313434110
61143142310
7215520612
oct61552202
926460466
1013030530
1173a0037
124444996
132913096
141a32a42
151225d70
hexc6d482

13030530 has 32 divisors (see below), whose sum is σ = 31584384. Its totient is φ = 3440256.

The previous prime is 13030513. The next prime is 13030543. The reversal of 13030530 is 3503031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 982 + ... + 5198.

It is an arithmetic number, because the mean of its divisors is an integer number (987012).

Almost surely, 213030530 is an apocalyptic number.

13030530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13030530 is an abundant number, since it is smaller than the sum of its proper divisors (18553854).

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

13030530 is a wasteful number, since it uses less digits than its factorization.

13030530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330.

The product of its (nonzero) digits is 135, while the sum is 15.

The square root of 13030530 is about 3609.7825419269. The cubic root of 13030530 is about 235.3173921707.

Adding to 13030530 its reverse (3503031), we get a palindrome (16533561).

The spelling of 13030530 in words is "thirteen million, thirty thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 103 206 309 515 618 1030 1545 3090 4217 8434 12651 21085 25302 42170 63255 126510 434351 868702 1303053 2171755 2606106 4343510 6515265 13030530