Search a number
-
+
30942901 = 1115831777
BaseRepresentation
bin111011000001…
…0011010110101
32011020001200101
41312002122311
530410133101
63023114101
7524003353
oct166023265
964201611
1030942901
1116514950
12a442931
136545212
1441767d3
152ab3401
hex1d826b5

30942901 has 8 divisors (see below), whose sum is σ = 33796224. Its totient is φ = 28096320.

The previous prime is 30942893. The next prime is 30942911. The reversal of 30942901 is 10924903.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30942901 - 23 = 30942893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30942901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30942911) 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 7 ways as a sum of consecutive naturals, for example, 16525 + ... + 18301.

It is an arithmetic number, because the mean of its divisors is an integer number (4224528).

Almost surely, 230942901 is an apocalyptic number.

It is an amenable number.

30942901 is a deficient number, since it is larger than the sum of its proper divisors (2853323).

30942901 is a wasteful number, since it uses less digits than its factorization.

30942901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 30942901 is about 5562.6343579279. The cubic root of 30942901 is about 313.9450760629.

It can be divided in two parts, 3094 and 2901, that added together give a palindrome (5995).

The spelling of 30942901 in words is "thirty million, nine hundred forty-two thousand, nine hundred one".

Divisors: 1 11 1583 1777 17413 19547 2812991 30942901