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30232812 = 22331671213
BaseRepresentation
bin111001101010…
…1000011101100
32002212222121210
41303111003230
530214422222
62555554420
7514655211
oct163250354
962788553
1030232812
111607a3a5
12a15ba10
136356c4c
14402db08
1529c2d0c
hex1cd50ec

30232812 has 48 divisors (see below), whose sum is σ = 73966592. Its totient is φ = 9599040.

The previous prime is 30232793. The next prime is 30232837. The reversal of 30232812 is 21823203.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 24318 + ... + 25530.

Almost surely, 230232812 is an apocalyptic number.

It is an amenable number.

30232812 is an abundant number, since it is smaller than the sum of its proper divisors (43733780).

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

30232812 is a wasteful number, since it uses less digits than its factorization.

30232812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 30232812 is about 5498.4372325234. The cubic root of 30232812 is about 311.5249592028.

The spelling of 30232812 in words is "thirty million, two hundred thirty-two thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 31 62 67 93 124 134 186 201 268 372 402 804 1213 2077 2426 3639 4154 4852 6231 7278 8308 12462 14556 24924 37603 75206 81271 112809 150412 162542 225618 243813 325084 451236 487626 975252 2519401 5038802 7558203 10077604 15116406 30232812