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30023202 = 23114371149
BaseRepresentation
bin111001010000…
…1111000100010
32002111100002110
41302201320202
530141220302
62551300150
7513123126
oct162417042
962440073
1030023202
1115a46970
12a07a656
1362b2711
143db7586
152980b6c
hex1ca1e22

30023202 has 64 divisors (see below), whose sum is σ = 68428800. Its totient is φ = 8702400.

The previous prime is 30023197. The next prime is 30023209. The reversal of 30023202 is 20232003.

It is not an unprimeable number, because it can be changed into a prime (30023209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201424 + ... + 201572.

It is an arithmetic number, because the mean of its divisors is an integer number (1069200).

Almost surely, 230023202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30023202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34214400).

30023202 is an abundant number, since it is smaller than the sum of its proper divisors (38405598).

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

30023202 is a wasteful number, since it uses less digits than its factorization.

30023202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 30023202 is about 5479.3432088162. The cubic root of 30023202 is about 310.8033344073.

Adding to 30023202 its reverse (20232003), we get a palindrome (50255205).

The spelling of 30023202 in words is "thirty million, twenty-three thousand, two hundred two".

Divisors: 1 2 3 6 11 22 33 43 66 71 86 129 142 149 213 258 298 426 447 473 781 894 946 1419 1562 1639 2343 2838 3053 3278 4686 4917 6106 6407 9159 9834 10579 12814 18318 19221 21158 31737 33583 38442 63474 67166 70477 100749 116369 140954 201498 211431 232738 349107 422862 454897 698214 909794 1364691 2729382 5003867 10007734 15011601 30023202