Search a number
-
+
2920131 = 3561197
BaseRepresentation
bin1011001000111011000011
312111100200000
423020323003
51221421011
6142331043
733551334
oct13107303
95440600
102920131
111714a35
12b89a83
137b31b6
1456028b
153ca356
hex2c8ec3

2920131 has 24 divisors (see below), whose sum is σ = 4468464. Its totient is φ = 1905120.

The previous prime is 2920123. The next prime is 2920139. The reversal of 2920131 is 1310292.

It is a happy number.

2920131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2920123) and next prime (2920139).

It is not a de Polignac number, because 2920131 - 23 = 2920123 is a prime.

It is a super-2 number, since 2×29201312 = 17054330114322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2920139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14725 + ... + 14921.

It is an arithmetic number, because the mean of its divisors is an integer number (186186).

22920131 is an apocalyptic number.

2920131 is a deficient number, since it is larger than the sum of its proper divisors (1548333).

2920131 is an equidigital number, since it uses as much as digits as its factorization.

2920131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2920131 is about 1708.8390796093. The cubic root of 2920131 is about 142.9335273886.

The spelling of 2920131 in words is "two million, nine hundred twenty thousand, one hundred thirty-one".

Divisors: 1 3 9 27 61 81 183 197 243 549 591 1647 1773 4941 5319 12017 14823 15957 36051 47871 108153 324459 973377 2920131