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30149174 = 2113144207
BaseRepresentation
bin111001100000…
…0101000110110
32002201201220002
41303000220312
530204233144
62554111302
7514156316
oct163005066
962651802
1030149174
1116022580
12a11b532
136327b63
14400b446
1529a814e
hex1cc0a36

30149174 has 16 divisors (see below), whose sum is σ = 50927616. Its totient is φ = 13261800.

The previous prime is 30149167. The next prime is 30149201. The reversal of 30149174 is 47194103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21422 + ... + 22785.

It is an arithmetic number, because the mean of its divisors is an integer number (3182976).

Almost surely, 230149174 is an apocalyptic number.

30149174 is a deficient number, since it is larger than the sum of its proper divisors (20778442).

30149174 is a wasteful number, since it uses less digits than its factorization.

30149174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44251.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 30149174 is about 5490.8263494669. The cubic root of 30149174 is about 311.2374196407.

The spelling of 30149174 in words is "thirty million, one hundred forty-nine thousand, one hundred seventy-four".

Divisors: 1 2 11 22 31 62 341 682 44207 88414 486277 972554 1370417 2740834 15074587 30149174