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5121169 = 312732
BaseRepresentation
bin10011100010010010010001
3100122011220221
4103202102101
52302334134
6301433041
761346344
oct23422221
910564827
105121169
112988679
12186b781
1310a3ca1
1497445b
156b25b4
hex4e2491

5121169 has 9 divisors (see below), whose sum is σ = 5365179. Its totient is φ = 4888080.

The previous prime is 5121161. The next prime is 5121173. The reversal of 5121169 is 9611215.

The square root of 5121169 is 2263.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2907025 + 2214144 = 1705^2 + 1488^2 .

It is not a de Polignac number, because 5121169 - 23 = 5121161 is a prime.

It is a super-2 number, since 2×51211692 = 52452743853122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5121161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 70117 + ... + 70189.

It is an arithmetic number, because the mean of its divisors is an integer number (596131).

Almost surely, 25121169 is an apocalyptic number.

5121169 is the 2263-rd square number.

5121169 is the 1132-nd centered octagonal number.

It is an amenable number.

5121169 is a deficient number, since it is larger than the sum of its proper divisors (244010).

5121169 is an frugal number, since it uses more digits than its factorization.

5121169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 104 counting only the distinct ones).

The product of its digits is 540, while the sum is 25.

The cubic root of 5121169 is about 172.3678915697.

Multiplying 5121169 by its sum of digits (25), we get a square (128029225 = 113152).

It can be divided in two parts, 512 and 1169, that added together give a square (1681 = 412).

The spelling of 5121169 in words is "five million, one hundred twenty-one thousand, one hundred sixty-nine".

Divisors: 1 31 73 961 2263 5329 70153 165199 5121169