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30222430 = 25717109233
BaseRepresentation
bin111001101001…
…0100001011110
32002212110101021
41303102201132
530214104210
62555434354
7514613020
oct163224136
962773337
1030222430
1116072617
12a1559ba
1363522c4
14402a010
1529bebda
hex1cd285e

30222430 has 64 divisors (see below), whose sum is σ = 66718080. Its totient is φ = 9621504.

The previous prime is 30222397. The next prime is 30222431. The reversal of 30222430 is 3422203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222431) 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 31 ways as a sum of consecutive naturals, for example, 129594 + ... + 129826.

It is an arithmetic number, because the mean of its divisors is an integer number (1042470).

Almost surely, 230222430 is an apocalyptic number.

30222430 is an abundant number, since it is smaller than the sum of its proper divisors (36495650).

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

30222430 is a wasteful number, since it uses less digits than its factorization.

30222430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30222430 is about 5497.4930650252. The cubic root of 30222430 is about 311.4892957167.

Adding to 30222430 its reverse (3422203), we get a palindrome (33644633).

The spelling of 30222430 in words is "thirty million, two hundred twenty-two thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 109 119 170 218 233 238 466 545 595 763 1090 1165 1190 1526 1631 1853 2330 3262 3706 3815 3961 7630 7922 8155 9265 12971 16310 18530 19805 25397 25942 27727 39610 50794 55454 64855 126985 129710 138635 177779 253970 277270 355558 431749 863498 888895 1777790 2158745 3022243 4317490 6044486 15111215 30222430