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30342949 = 713333439
BaseRepresentation
bin111001110111…
…1111100100101
32010002120200221
41303233330211
530231433244
63002204341
7515624260
oct163577445
963076627
1030342949
111614511a
12a1b36b1
136395110
14405bcd7
1529e5784
hex1ceff25

30342949 has 8 divisors (see below), whose sum is σ = 37345280. Its totient is φ = 24007536.

The previous prime is 30342937. The next prime is 30342979. The reversal of 30342949 is 94924303.

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

It is not a de Polignac number, because 30342949 - 217 = 30211877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30342929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166629 + ... + 166810.

It is an arithmetic number, because the mean of its divisors is an integer number (4668160).

Almost surely, 230342949 is an apocalyptic number.

It is an amenable number.

30342949 is a deficient number, since it is larger than the sum of its proper divisors (7002331).

30342949 is a wasteful number, since it uses less digits than its factorization.

30342949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333459.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 30342949 is about 5508.4434280475. The cubic root of 30342949 is about 311.9027920101.

It can be divided in two parts, 3034294 and 9, that added together give a palindrome (3034303).

The spelling of 30342949 in words is "thirty million, three hundred forty-two thousand, nine hundred forty-nine".

Divisors: 1 7 13 91 333439 2334073 4334707 30342949