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30137774 = 2232292861
BaseRepresentation
bin111001011110…
…1110110101110
32002201011020212
41302331312232
530203402044
62553542422
7514111142
oct162756656
962634225
1030137774
1116014a57
12a114a12
136322904
144007222
1529a4a9e
hex1cbddae

30137774 has 16 divisors (see below), whose sum is σ = 47394720. Its totient is φ = 14345760.

The previous prime is 30137771. The next prime is 30137791. The reversal of 30137774 is 47773103.

It is a self number, because there is not a number n which added to its sum of digits gives 30137774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30137771) 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, 9104 + ... + 11964.

It is an arithmetic number, because the mean of its divisors is an integer number (2962170).

Almost surely, 230137774 is an apocalyptic number.

30137774 is a deficient number, since it is larger than the sum of its proper divisors (17256946).

30137774 is a wasteful number, since it uses less digits than its factorization.

30137774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115.

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 30137774 is about 5489.7881562042. The cubic root of 30137774 is about 311.1981863504.

The spelling of 30137774 in words is "thirty million, one hundred thirty-seven thousand, seven hundred seventy-four".

Divisors: 1 2 23 46 229 458 2861 5267 5722 10534 65803 131606 655169 1310338 15068887 30137774