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30030286 = 21113241197
BaseRepresentation
bin111001010001…
…1100111001110
32002111200210211
41302203213032
530141432121
62551353034
7513152566
oct162434716
962450724
1030030286
1115a51220
12a08277a
1362b5a00
143db9da6
152982ce1
hex1ca39ce

30030286 has 48 divisors (see below), whose sum is σ = 54785808. Its totient is φ = 12230400.

The previous prime is 30030269. The next prime is 30030307. The reversal of 30030286 is 68203003.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 152340 + ... + 152536.

It is an arithmetic number, because the mean of its divisors is an integer number (1141371).

Almost surely, 230030286 is an apocalyptic number.

30030286 is a deficient number, since it is larger than the sum of its proper divisors (24755522).

30030286 is a wasteful number, since it uses less digits than its factorization.

30030286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 30030286 is about 5479.9895985303. The cubic root of 30030286 is about 310.8277772552.

Adding to 30030286 its reverse (68203003), we get a palindrome (98233289).

The spelling of 30030286 in words is "thirty million, thirty thousand, two hundred eighty-six".

Divisors: 1 2 11 13 22 26 41 82 143 169 197 286 338 394 451 533 902 1066 1859 2167 2561 3718 4334 5122 5863 6929 8077 11726 13858 16154 28171 33293 56342 66586 76219 88847 105001 152438 177694 210002 366223 732446 1155011 1365013 2310022 2730026 15015143 30030286