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551272 = 2368909
BaseRepresentation
bin10000110100101101000
31001000012111
42012211220
5120120042
615452104
74454131
oct2064550
91030174
10551272
113471a7
12227034
13163bc7
14104c88
15ad517
hex86968

551272 has 8 divisors (see below), whose sum is σ = 1033650. Its totient is φ = 275632.

The previous prime is 551269. The next prime is 551281. The reversal of 551272 is 272155.

551272 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in only one way, i.e., 417316 + 133956 = 646^2 + 366^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34447 + ... + 34462.

2551272 is an apocalyptic number.

It is an amenable number.

551272 is a deficient number, since it is larger than the sum of its proper divisors (482378).

551272 is a wasteful number, since it uses less digits than its factorization.

551272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68915 (or 68911 counting only the distinct ones).

The product of its digits is 700, while the sum is 22.

The square root of 551272 is about 742.4769356687. The cubic root of 551272 is about 81.9952406518.

The spelling of 551272 in words is "five hundred fifty-one thousand, two hundred seventy-two".

Divisors: 1 2 4 8 68909 137818 275636 551272