Search a number
-
+
30169739 = 1912712503
BaseRepresentation
bin111001100010…
…1101010001011
32002202210002202
41303011222023
530210412424
62554350415
7514303265
oct163055213
962683082
1030169739
1116036a76
12a12b40b
136334322
144014b35
1529ae2ae
hex1cc5a8b

30169739 has 8 divisors (see below), whose sum is σ = 32010240. Its totient is φ = 28354536.

The previous prime is 30169717. The next prime is 30169759. The reversal of 30169739 is 93796103.

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

It is not a de Polignac number, because 30169739 - 212 = 30165643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30169759) 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 7 ways as a sum of consecutive naturals, for example, 3839 + ... + 8664.

It is an arithmetic number, because the mean of its divisors is an integer number (4001280).

Almost surely, 230169739 is an apocalyptic number.

30169739 is a deficient number, since it is larger than the sum of its proper divisors (1840501).

30169739 is a wasteful number, since it uses less digits than its factorization.

30169739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12649.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 30169739 is about 5492.6986991824. The cubic root of 30169739 is about 311.3081694262.

The spelling of 30169739 in words is "thirty million, one hundred sixty-nine thousand, seven hundred thirty-nine".

Divisors: 1 19 127 2413 12503 237557 1587881 30169739