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30149105 = 571945337
BaseRepresentation
bin111001100000…
…0100111110001
32002201201210112
41303000213301
530204232410
62554111105
7514156160
oct163004761
962651715
1030149105
1116022518
12a11b495
136327b0c
14400b3d7
1529a8105
hex1cc09f1

30149105 has 16 divisors (see below), whose sum is σ = 43524480. Its totient is φ = 19585152.

The previous prime is 30149089. The next prime is 30149111. The reversal of 30149105 is 50194103.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30149105 - 24 = 30149089 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22004 + ... + 23333.

It is an arithmetic number, because the mean of its divisors is an integer number (2720280).

Almost surely, 230149105 is an apocalyptic number.

30149105 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30149105 is a deficient number, since it is larger than the sum of its proper divisors (13375375).

30149105 is a wasteful number, since it uses less digits than its factorization.

30149105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45368.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 30149105 is about 5490.8200662560. The cubic root of 30149105 is about 311.2371822058.

The spelling of 30149105 in words is "thirty million, one hundred forty-nine thousand, one hundred five".

Divisors: 1 5 7 19 35 95 133 665 45337 226685 317359 861403 1586795 4307015 6029821 30149105