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30650901 = 310216967
BaseRepresentation
bin111010011101…
…1001000010101
32010200020010120
41310323020111
530321312101
63012542153
7521346141
oct164731025
963606116
1030650901
1116335526
12a321959
136472338
1440dc221
152a56b36
hex1d3b215

30650901 has 4 divisors (see below), whose sum is σ = 40867872. Its totient is φ = 20433932.

The previous prime is 30650897. The next prime is 30650947. The reversal of 30650901 is 10905603.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10905603 = 33635201.

It is a cyclic number.

It is not a de Polignac number, because 30650901 - 22 = 30650897 is a prime.

It is a super-2 number, since 2×306509012 = 1878955464223602, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30650981) 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, 5108481 + ... + 5108486.

It is an arithmetic number, because the mean of its divisors is an integer number (10216968).

Almost surely, 230650901 is an apocalyptic number.

It is an amenable number.

30650901 is a deficient number, since it is larger than the sum of its proper divisors (10216971).

30650901 is a wasteful number, since it uses less digits than its factorization.

30650901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10216970.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 30650901 is about 5536.3255865240. The cubic root of 30650901 is about 312.9544143175.

The spelling of 30650901 in words is "thirty million, six hundred fifty thousand, nine hundred one".

Divisors: 1 3 10216967 30650901