Search a number
-
+
30674837 = 291057753
BaseRepresentation
bin111010100000…
…0111110010101
32010201102222002
41311000332111
530323043322
63013245045
7521506004
oct165007625
963642862
1030674837
1116351506
12a333785
1364801bb
144106c3b
152a5dc92
hex1d40f95

30674837 has 4 divisors (see below), whose sum is σ = 31732620. Its totient is φ = 29617056.

The previous prime is 30674827. The next prime is 30674857. The reversal of 30674837 is 73847603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12773476 + 17901361 = 3574^2 + 4231^2 .

It is a cyclic number.

It is not a de Polignac number, because 30674837 - 24 = 30674821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30674837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30674827) by changing a digit.

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, 528848 + ... + 528905.

It is an arithmetic number, because the mean of its divisors is an integer number (7933155).

Almost surely, 230674837 is an apocalyptic number.

It is an amenable number.

30674837 is a deficient number, since it is larger than the sum of its proper divisors (1057783).

30674837 is a wasteful number, since it uses less digits than its factorization.

30674837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057782.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 30674837 is about 5538.4868872283. The cubic root of 30674837 is about 313.0358575761.

The spelling of 30674837 in words is "thirty million, six hundred seventy-four thousand, eight hundred thirty-seven".

Divisors: 1 29 1057753 30674837