Search a number
-
+
30944901 = 3131941761
BaseRepresentation
bin111011000001…
…0111010000101
32011020011102110
41312002322011
530410214101
63023131233
7524012241
oct166027205
964204373
1030944901
11165163a9
12a443b19
1365460c0
144177421
152ab3cd6
hex1d82e85

30944901 has 16 divisors (see below), whose sum is σ = 46773440. Its totient is φ = 18040320.

The previous prime is 30944899. The next prime is 30944909. The reversal of 30944901 is 10944903.

It is not a de Polignac number, because 30944901 - 21 = 30944899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30944909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20140 + ... + 21621.

It is an arithmetic number, because the mean of its divisors is an integer number (2923340).

Almost surely, 230944901 is an apocalyptic number.

It is an amenable number.

30944901 is a deficient number, since it is larger than the sum of its proper divisors (15828539).

30944901 is a wasteful number, since it uses less digits than its factorization.

30944901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41796.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 30944901 is about 5562.8141259618. The cubic root of 30944901 is about 313.9518398828.

The spelling of 30944901 in words is "thirty million, nine hundred forty-four thousand, nine hundred one".

Divisors: 1 3 13 19 39 57 247 741 41761 125283 542893 793459 1628679 2380377 10314967 30944901