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30109641 = 311388819
BaseRepresentation
bin111001011011…
…0111111001001
32002122201122220
41302312333021
530202002031
62553204253
7513633132
oct162667711
962581586
1030109641
1115aa5901
12a100689
136312b73
143ddac89
15299b596
hex1cb6fc9

30109641 has 8 divisors (see below), whose sum is σ = 40501920. Its totient is φ = 19895232.

The previous prime is 30109637. The next prime is 30109687. The reversal of 30109641 is 14690103.

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

It is not a de Polignac number, because 30109641 - 22 = 30109637 is a prime.

It is a super-2 number, since 2×301096412 = 1813180962297762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30109241) 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, 44071 + ... + 44748.

It is an arithmetic number, because the mean of its divisors is an integer number (5062740).

Almost surely, 230109641 is an apocalyptic number.

It is an amenable number.

30109641 is a deficient number, since it is larger than the sum of its proper divisors (10392279).

30109641 is a wasteful number, since it uses less digits than its factorization.

30109641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88935.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 30109641 is about 5487.2252550811. The cubic root of 30109641 is about 311.1013238087.

Adding to 30109641 its reverse (14690103), we get a palindrome (44799744).

The spelling of 30109641 in words is "thirty million, one hundred nine thousand, six hundred forty-one".

Divisors: 1 3 113 339 88819 266457 10036547 30109641