Search a number
-
+
2155301 = 10720143
BaseRepresentation
bin1000001110001100100101
311001111111222
420032030211
51022432201
6114110125
724214451
oct10161445
94044458
102155301
111242345
1287b345
135a6035
14401661
152c891b
hex20e325

2155301 has 4 divisors (see below), whose sum is σ = 2175552. Its totient is φ = 2135052.

The previous prime is 2155297. The next prime is 2155319. The reversal of 2155301 is 1035512.

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 a cyclic number.

It is not a de Polignac number, because 2155301 - 22 = 2155297 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 2155301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9965 + ... + 10178.

It is an arithmetic number, because the mean of its divisors is an integer number (543888).

22155301 is an apocalyptic number.

It is an amenable number.

2155301 is a deficient number, since it is larger than the sum of its proper divisors (20251).

2155301 is a wasteful number, since it uses less digits than its factorization.

2155301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20250.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 2155301 is about 1468.0943430175. The cubic root of 2155301 is about 129.1722754877.

The spelling of 2155301 in words is "two million, one hundred fifty-five thousand, three hundred one".

Divisors: 1 107 20143 2155301