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30080194 = 215040097
BaseRepresentation
bin111001010111…
…1110011000010
32002121020021021
41302233303002
530200031234
62552420054
7513451234
oct162576302
962536237
1030080194
1115a85771
12a0a762a
136302641
143dd0254
1529929b4
hex1cafcc2

30080194 has 4 divisors (see below), whose sum is σ = 45120294. Its totient is φ = 15040096.

The previous prime is 30080153. The next prime is 30080201. The reversal of 30080194 is 49108003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49108003 = 77015429.

It can be written as a sum of positive squares in only one way, i.e., 29106025 + 974169 = 5395^2 + 987^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7520047 + ... + 7520050.

Almost surely, 230080194 is an apocalyptic number.

30080194 is a deficient number, since it is larger than the sum of its proper divisors (15040100).

30080194 is a wasteful number, since it uses less digits than its factorization.

30080194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15040099.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 30080194 is about 5484.5413664225. The cubic root of 30080194 is about 310.9998724854. Note that the first 3 decimals are identical.

Adding to 30080194 its reverse (49108003), we get a palindrome (79188197).

The spelling of 30080194 in words is "thirty million, eighty thousand, one hundred ninety-four".

Divisors: 1 2 15040097 30080194