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30190147 = 1317136607
BaseRepresentation
bin111001100101…
…0101001000011
32002210211002121
41303022221003
530212041042
62555025111
7514416631
oct163125103
962724077
1030190147
1116050339
12a13b197
1363406c0
14401c351
1529b5367
hex1ccaa43

30190147 has 8 divisors (see below), whose sum is σ = 34425216. Its totient is φ = 26228352.

The previous prime is 30190141. The next prime is 30190151. The reversal of 30190147 is 74109103.

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

It is a cyclic number.

It is not a de Polignac number, because 30190147 - 211 = 30188099 is a prime.

It is a super-2 number, since 2×301901472 = 1822889951763218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30190141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68083 + ... + 68524.

It is an arithmetic number, because the mean of its divisors is an integer number (4303152).

Almost surely, 230190147 is an apocalyptic number.

30190147 is a deficient number, since it is larger than the sum of its proper divisors (4235069).

30190147 is a wasteful number, since it uses less digits than its factorization.

30190147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136637.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 30190147 is about 5494.5561240195. The cubic root of 30190147 is about 311.3783473082.

The spelling of 30190147 in words is "thirty million, one hundred ninety thousand, one hundred forty-seven".

Divisors: 1 13 17 221 136607 1775891 2322319 30190147