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30101061 = 310033687
BaseRepresentation
bin111001011010…
…0111001000101
32002122021220010
41302310321011
530201213221
62553100433
7513566124
oct162647105
962567803
1030101061
1115a9a411
12a0b7719
13630bca3
143dd7abb
152998c76
hex1cb4e45

30101061 has 4 divisors (see below), whose sum is σ = 40134752. Its totient is φ = 20067372.

The previous prime is 30101051. The next prime is 30101069. The reversal of 30101061 is 16010103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30101061 - 27 = 30100933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30101069) 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, 5016841 + ... + 5016846.

It is an arithmetic number, because the mean of its divisors is an integer number (10033688).

Almost surely, 230101061 is an apocalyptic number.

It is an amenable number.

30101061 is a deficient number, since it is larger than the sum of its proper divisors (10033691).

30101061 is a wasteful number, since it uses less digits than its factorization.

30101061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10033690.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 30101061 is about 5486.4433834680. The cubic root of 30101061 is about 311.0717706728.

Adding to 30101061 its reverse (16010103), we get a palindrome (46111164).

The spelling of 30101061 in words is "thirty million, one hundred one thousand, sixty-one".

Divisors: 1 3 10033687 30101061