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30090196 = 2243174943
BaseRepresentation
bin111001011001…
…0001111010100
32002121201222201
41302302033110
530200341241
62552534244
7513522343
oct162621724
962551881
1030090196
1115a92234
12a0b1384
136307066
143dd3b5a
152995931
hex1cb23d4

30090196 has 12 divisors (see below), whose sum is σ = 53882752. Its totient is φ = 14695128.

The previous prime is 30090191. The next prime is 30090241. The reversal of 30090196 is 69109003.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30090191) 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, 87300 + ... + 87643.

Almost surely, 230090196 is an apocalyptic number.

It is an amenable number.

30090196 is a deficient number, since it is larger than the sum of its proper divisors (23792556).

30090196 is a wasteful number, since it uses less digits than its factorization.

30090196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174990 (or 174988 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 30090196 is about 5485.4531262239. The cubic root of 30090196 is about 311.0343389743.

Adding to 30090196 its reverse (69109003), we get a palindrome (99199199).

The spelling of 30090196 in words is "thirty million, ninety thousand, one hundred ninety-six".

Divisors: 1 2 4 43 86 172 174943 349886 699772 7522549 15045098 30090196