Search a number
-
+
275479172 = 22611129013
BaseRepresentation
bin10000011010110…
…111101010000100
3201012100210101022
4100122313222010
51031010313142
643200250312
76553351163
oct2032675204
9635323338
10275479172
11131556641
1278310998
13450c3a37
142882d3da
15192b86d2
hex106b7a84

275479172 has 12 divisors (see below), whose sum is σ = 489992076. Its totient is φ = 135481440.

The previous prime is 275479153. The next prime is 275479229. The reversal of 275479172 is 271974572.

It can be written as a sum of positive squares in 2 ways, for example, as 7043716 + 268435456 = 2654^2 + 16384^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 564263 + ... + 564750.

It is an arithmetic number, because the mean of its divisors is an integer number (40832673).

Almost surely, 2275479172 is an apocalyptic number.

It is an amenable number.

275479172 is a deficient number, since it is larger than the sum of its proper divisors (214512904).

275479172 is a wasteful number, since it uses less digits than its factorization.

275479172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129078 (or 1129076 counting only the distinct ones).

The product of its digits is 246960, while the sum is 44.

The square root of 275479172 is about 16597.5652431313. The cubic root of 275479172 is about 650.6732054785.

Subtracting from 275479172 its sum of digits (44), we obtain a triangular number (275479128 = T23472).

The spelling of 275479172 in words is "two hundred seventy-five million, four hundred seventy-nine thousand, one hundred seventy-two".

Divisors: 1 2 4 61 122 244 1129013 2258026 4516052 68869793 137739586 275479172