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30109342 = 237406883
BaseRepresentation
bin111001011011…
…0111010011110
32002122201020211
41302312322132
530201444332
62553203034
7513632224
oct162667236
962581224
1030109342
1115aa565a
12a10047a
1363129a3
143ddab14
15299b447
hex1cb6e9e

30109342 has 8 divisors (see below), whose sum is σ = 46384776. Its totient is φ = 14647752.

The previous prime is 30109333. The next prime is 30109367. The reversal of 30109342 is 24390103.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203368 + ... + 203515.

It is an arithmetic number, because the mean of its divisors is an integer number (5798097).

Almost surely, 230109342 is an apocalyptic number.

30109342 is a deficient number, since it is larger than the sum of its proper divisors (16275434).

30109342 is a wasteful number, since it uses less digits than its factorization.

30109342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406922.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30109342 is about 5487.1980099136. The cubic root of 30109342 is about 311.1002940211.

Adding to 30109342 its reverse (24390103), we get a palindrome (54499445).

The spelling of 30109342 in words is "thirty million, one hundred nine thousand, three hundred forty-two".

Divisors: 1 2 37 74 406883 813766 15054671 30109342