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30020230 = 2510129723
BaseRepresentation
bin111001010000…
…1001010000110
32002111012000101
41302201022012
530141121410
62551234314
7513111352
oct162411206
962435011
1030020230
1115a44709
12a07899a
1362b1266
143db6462
15297ed3a
hex1ca1286

30020230 has 16 divisors (see below), whose sum is σ = 54573264. Its totient is φ = 11888800.

The previous prime is 30020227. The next prime is 30020251. The reversal of 30020230 is 3202003.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 13852 + ... + 15871.

It is an arithmetic number, because the mean of its divisors is an integer number (3410829).

Almost surely, 230020230 is an apocalyptic number.

30020230 is a deficient number, since it is larger than the sum of its proper divisors (24553034).

30020230 is a wasteful number, since it uses less digits than its factorization.

30020230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29831.

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 30020230 is about 5479.0720017171. The cubic root of 30020230 is about 310.7930785837.

Adding to 30020230 its reverse (3202003), we get a palindrome (33222233).

The spelling of 30020230 in words is "thirty million, twenty thousand, two hundred thirty".

Divisors: 1 2 5 10 101 202 505 1010 29723 59446 148615 297230 3002023 6004046 15010115 30020230