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30208276 = 2277314779
BaseRepresentation
bin111001100111…
…1000100010100
32002211201222001
41303033010110
530213131101
62555245044
7514523530
oct163170424
962751861
1030208276
1116062a1a
12a149784
136348a27
144024bc0
1529ba901
hex1ccf114

30208276 has 24 divisors (see below), whose sum is σ = 61248320. Its totient is φ = 12768192.

The previous prime is 30208261. The next prime is 30208289. The reversal of 30208276 is 67280203.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 5346 + ... + 9433.

Almost surely, 230208276 is an apocalyptic number.

It is an amenable number.

30208276 is an abundant number, since it is smaller than the sum of its proper divisors (31040044).

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

30208276 is a wasteful number, since it uses less digits than its factorization.

30208276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14863 (or 14861 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 30208276 is about 5496.2056002300. The cubic root of 30208276 is about 311.4406617725.

Adding to 30208276 its reverse (67280203), we get a palindrome (97488479).

The spelling of 30208276 in words is "thirty million, two hundred eight thousand, two hundred seventy-six".

Divisors: 1 2 4 7 14 28 73 146 292 511 1022 2044 14779 29558 59116 103453 206906 413812 1078867 2157734 4315468 7552069 15104138 30208276