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30203082 = 23271318439
BaseRepresentation
bin111001100110…
…1110011001010
32002211110211200
41303031303022
530212444312
62555205030
7514502430
oct163156312
962743750
1030203082
111605a028
12a146776
136346560
144022d50
1529b90dc
hex1ccdcca

30203082 has 48 divisors (see below), whose sum is σ = 80545920. Its totient is φ = 7965216.

The previous prime is 30203077. The next prime is 30203099. The reversal of 30203082 is 28030203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7582 + ... + 10857.

It is an arithmetic number, because the mean of its divisors is an integer number (1678040).

Almost surely, 230203082 is an apocalyptic number.

30203082 is an abundant number, since it is smaller than the sum of its proper divisors (50342838).

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

30203082 is a wasteful number, since it uses less digits than its factorization.

30203082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18467 (or 18464 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30203082 is about 5495.7330721206. The cubic root of 30203082 is about 311.4228110846.

Adding to 30203082 its reverse (28030203), we get a palindrome (58233285).

The spelling of 30203082 in words is "thirty million, two hundred three thousand, eighty-two".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 91 117 126 182 234 273 546 819 1638 18439 36878 55317 110634 129073 165951 239707 258146 331902 387219 479414 719121 774438 1161657 1438242 1677949 2157363 2323314 3355898 4314726 5033847 10067694 15101541 30203082