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30266642 = 272161903
BaseRepresentation
bin111001101110…
…1010100010010
32002221201000202
41303131110102
530222013032
63000415202
7515155640
oct163352422
962851022
1030266642
11160a285a
12a177502
136369473
14403c190
1529ccd62
hex1cdd512

30266642 has 8 divisors (see below), whose sum is σ = 51885696. Its totient is φ = 12971412.

The previous prime is 30266623. The next prime is 30266671. The reversal of 30266642 is 24666203.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080938 + ... + 1080965.

It is an arithmetic number, because the mean of its divisors is an integer number (6485712).

Almost surely, 230266642 is an apocalyptic number.

30266642 is a deficient number, since it is larger than the sum of its proper divisors (21619054).

30266642 is a wasteful number, since it uses less digits than its factorization.

30266642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161912.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 30266642 is about 5501.5127010669. The cubic root of 30266642 is about 311.6411129242.

The spelling of 30266642 in words is "thirty million, two hundred sixty-six thousand, six hundred forty-two".

Divisors: 1 2 7 14 2161903 4323806 15133321 30266642