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5181061 = 31971723
BaseRepresentation
bin10011110000111010000101
3100202020002011
4103300322011
52311243221
6303014221
762016064
oct23607205
910666064
105181061
112a19676
12189a371
1310c5322
1498c1db
156c51e1
hex4f0e85

5181061 has 8 divisors (see below), whose sum is σ = 5406464. Its totient is φ = 4959360.

The previous prime is 5181023. The next prime is 5181067. The reversal of 5181061 is 1601815.

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 5181061 - 27 = 5180933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181067) 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 7 ways as a sum of consecutive naturals, for example, 2146 + ... + 3868.

It is an arithmetic number, because the mean of its divisors is an integer number (675808).

Almost surely, 25181061 is an apocalyptic number.

It is an amenable number.

5181061 is a deficient number, since it is larger than the sum of its proper divisors (225403).

5181061 is a wasteful number, since it uses less digits than its factorization.

5181061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 5181061 is about 2276.1944117320. The cubic root of 5181061 is about 173.0372356840.

Adding to 5181061 its reverse (1601815), we get a palindrome (6782876).

The spelling of 5181061 in words is "five million, one hundred eighty-one thousand, sixty-one".

Divisors: 1 31 97 1723 3007 53413 167131 5181061