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30220295 = 574718371
BaseRepresentation
bin111001101001…
…0000000000111
32002212100110012
41303102000013
530214022140
62555420435
7514603550
oct163220007
962770405
1030220295
1116070a56
12a15471b
136351341
144029327
1529be265
hex1cd2007

30220295 has 16 divisors (see below), whose sum is σ = 42329088. Its totient is φ = 20280480.

The previous prime is 30220277. The next prime is 30220327. The reversal of 30220295 is 59202203.

It is not a de Polignac number, because 30220295 - 214 = 30203911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30220295.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7541 + ... + 10830.

It is an arithmetic number, because the mean of its divisors is an integer number (2645568).

Almost surely, 230220295 is an apocalyptic number.

30220295 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30220295 is a deficient number, since it is larger than the sum of its proper divisors (12108793).

30220295 is a wasteful number, since it uses less digits than its factorization.

30220295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18430.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 30220295 is about 5497.2988821784. The cubic root of 30220295 is about 311.4819607086.

Adding to 30220295 its reverse (59202203), we get a palindrome (89422498).

The spelling of 30220295 in words is "thirty million, two hundred twenty thousand, two hundred ninety-five".

Divisors: 1 5 7 35 47 235 329 1645 18371 91855 128597 642985 863437 4317185 6044059 30220295