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30739242 = 236183987
BaseRepresentation
bin111010101000…
…0101100101010
32010211201022110
41311100230222
530332123432
63014503150
7522164532
oct165205452
963751273
1030739242
1116395936
12a364ab6
1364a3601
1441224c2
152a72dcc
hex1d50b2a

30739242 has 16 divisors (see below), whose sum is σ = 62487072. Its totient is φ = 10078320.

The previous prime is 30739229. The next prime is 30739271. The reversal of 30739242 is 24293703.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41628 + ... + 42359.

It is an arithmetic number, because the mean of its divisors is an integer number (3905442).

Almost surely, 230739242 is an apocalyptic number.

30739242 is an abundant number, since it is smaller than the sum of its proper divisors (31747830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30739242 is a wasteful number, since it uses less digits than its factorization.

30739242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84053.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 30739242 is about 5544.2981521560. The cubic root of 30739242 is about 313.2547881690.

The spelling of 30739242 in words is "thirty million, seven hundred thirty-nine thousand, two hundred forty-two".

Divisors: 1 2 3 6 61 122 183 366 83987 167974 251961 503922 5123207 10246414 15369621 30739242