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30237194 = 2131162969
BaseRepresentation
bin111001101011…
…0001000001010
32002220012122002
41303112020022
530220042234
63000031002
7515004041
oct163261012
962805562
1030237194
1116082719
12a162462
136358c40
144031558
1529c427e
hex1cd620a

30237194 has 8 divisors (see below), whose sum is σ = 48844740. Its totient is φ = 13955616.

The previous prime is 30237191. The next prime is 30237199. The reversal of 30237194 is 49173203.

It can be written as a sum of positive squares in 2 ways, for example, as 23668225 + 6568969 = 4865^2 + 2563^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30237191) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 581459 + ... + 581510.

Almost surely, 230237194 is an apocalyptic number.

30237194 is a deficient number, since it is larger than the sum of its proper divisors (18607546).

30237194 is a wasteful number, since it uses less digits than its factorization.

30237194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162984.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 30237194 is about 5498.8356949449. The cubic root of 30237194 is about 311.5400094780.

The spelling of 30237194 in words is "thirty million, two hundred thirty-seven thousand, one hundred ninety-four".

Divisors: 1 2 13 26 1162969 2325938 15118597 30237194