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30148845 = 352009923
BaseRepresentation
bin111001100000…
…0100011101101
32002201201102220
41303000203231
530204230340
62554105553
7514155336
oct163004355
962651386
1030148845
1116022301
12a11b2b9
13632796c
14400b28d
1529a7ed0
hex1cc08ed

30148845 has 8 divisors (see below), whose sum is σ = 48238176. Its totient is φ = 16079376.

The previous prime is 30148843. The next prime is 30148847. The reversal of 30148845 is 54884103.

It is an interprime number because it is at equal distance from previous prime (30148843) and next prime (30148847).

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

It is not a de Polignac number, because 30148845 - 21 = 30148843 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30148843) 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, 1004947 + ... + 1004976.

It is an arithmetic number, because the mean of its divisors is an integer number (6029772).

Almost surely, 230148845 is an apocalyptic number.

It is an amenable number.

30148845 is a deficient number, since it is larger than the sum of its proper divisors (18089331).

30148845 is a wasteful number, since it uses less digits than its factorization.

30148845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009931.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 30148845 is about 5490.7963903244. The cubic root of 30148845 is about 311.2362875203.

The spelling of 30148845 in words is "thirty million, one hundred forty-eight thousand, eight hundred forty-five".

Divisors: 1 3 5 15 2009923 6029769 10049615 30148845