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30342263 = 717254977
BaseRepresentation
bin111001110111…
…1110001110111
32010002112202112
41303233301313
530231423023
63002201235
7515622260
oct163576167
963075675
1030342263
1116144656
12a1b321b
136394a03
14405b967
1529e5478
hex1cefc77

30342263 has 8 divisors (see below), whose sum is σ = 36716832. Its totient is φ = 24477696.

The previous prime is 30342253. The next prime is 30342269. The reversal of 30342263 is 36224303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30342263 - 26 = 30342199 is a prime.

It is a super-2 number, since 2×303422632 = 1841305847922338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30342269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127370 + ... + 127607.

It is an arithmetic number, because the mean of its divisors is an integer number (4589604).

Almost surely, 230342263 is an apocalyptic number.

30342263 is a deficient number, since it is larger than the sum of its proper divisors (6374569).

30342263 is a wasteful number, since it uses less digits than its factorization.

30342263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255001.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 30342263 is about 5508.3811596512. The cubic root of 30342263 is about 311.9004414703.

Adding to 30342263 its reverse (36224303), we get a palindrome (66566566).

The spelling of 30342263 in words is "thirty million, three hundred forty-two thousand, two hundred sixty-three".

Divisors: 1 7 17 119 254977 1784839 4334609 30342263