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30300392 = 2317317187
BaseRepresentation
bin111001110010…
…1100011101000
32010000102022202
41303211203220
530224103032
63001235332
7515356223
oct163454350
963012282
1030300392
1116116151
12a192b48
13637b935
14404a5ba
1529d7d62
hex1ce58e8

30300392 has 32 divisors (see below), whose sum is σ = 62104320. Its totient is φ = 13797120.

The previous prime is 30300359. The next prime is 30300397. The reversal of 30300392 is 29300303.

It is a super-2 number, since 2×303003922 = 1836227510707328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30300397) by changing a digit.

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, 623 + ... + 7809.

It is an arithmetic number, because the mean of its divisors is an integer number (1940760).

Almost surely, 230300392 is an apocalyptic number.

It is an amenable number.

30300392 is an abundant number, since it is smaller than the sum of its proper divisors (31803928).

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

30300392 is a wasteful number, since it uses less digits than its factorization.

30300392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7241 (or 7237 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 30300392 is about 5504.5791846425. The cubic root of 30300392 is about 311.7569057556.

Adding to 30300392 its reverse (29300303), we get a palindrome (59600695).

The spelling of 30300392 in words is "thirty million, three hundred thousand, three hundred ninety-two".

Divisors: 1 2 4 8 17 31 34 62 68 124 136 248 527 1054 2108 4216 7187 14374 28748 57496 122179 222797 244358 445594 488716 891188 977432 1782376 3787549 7575098 15150196 30300392