Search a number
-
+
3545031 = 37223757
BaseRepresentation
bin1101100001011111000111
320200002212110
431201133013
51401420111
6203552103
742063240
oct15413707
96602773
103545031
112001486
12122b633
13971769
14683cc7
154a05a6
hex3617c7

3545031 has 16 divisors (see below), whose sum is σ = 5433344. Its totient is φ = 2013984.

The previous prime is 3545029. The next prime is 3545041. The reversal of 3545031 is 1305453.

It is not a de Polignac number, because 3545031 - 21 = 3545029 is a prime.

It is a super-2 number, since 2×35450312 = 25134489581922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

3545031 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3544989 and 3545007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545021) 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 15 ways as a sum of consecutive naturals, for example, 4305 + ... + 5061.

It is an arithmetic number, because the mean of its divisors is an integer number (339584).

Almost surely, 23545031 is an apocalyptic number.

3545031 is a deficient number, since it is larger than the sum of its proper divisors (1888313).

3545031 is a wasteful number, since it uses less digits than its factorization.

3545031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 3545031 is about 1882.8252707036. The cubic root of 3545031 is about 152.4778217322.

The spelling of 3545031 in words is "three million, five hundred forty-five thousand, thirty-one".

Divisors: 1 3 7 21 223 669 757 1561 2271 4683 5299 15897 168811 506433 1181677 3545031