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30302286 = 2372103069
BaseRepresentation
bin111001110011…
…0000001001110
32010000111220220
41303212001032
530224133121
63001252210
7515364600
oct163460116
963014826
1030302286
1116117613
12a194066
13637c761
14404b170
1529d86c6
hex1ce604e

30302286 has 24 divisors (see below), whose sum is σ = 70499880. Its totient is φ = 8657712.

The previous prime is 30302281. The next prime is 30302287. The reversal of 30302286 is 68220303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51241 + ... + 51828.

It is an arithmetic number, because the mean of its divisors is an integer number (2937495).

Almost surely, 230302286 is an apocalyptic number.

30302286 is an abundant number, since it is smaller than the sum of its proper divisors (40197594).

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

30302286 is a wasteful number, since it uses less digits than its factorization.

30302286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103088 (or 103081 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 30302286 is about 5504.7512205367. The cubic root of 30302286 is about 311.7634013292.

Adding to 30302286 its reverse (68220303), we get a palindrome (98522589).

The spelling of 30302286 in words is "thirty million, three hundred two thousand, two hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 103069 206138 309207 618414 721483 1442966 2164449 4328898 5050381 10100762 15151143 30302286