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5312872 = 23664109
BaseRepresentation
bin10100010001000101101000
3100222220220001
4110101011220
52330002442
6305512344
763105265
oct24210550
910886801
105312872
112aa9704
1219426b4
131140316
149c426c
156ee2b7
hex511168

5312872 has 8 divisors (see below), whose sum is σ = 9961650. Its totient is φ = 2656432.

The previous prime is 5312869. The next prime is 5312897. The reversal of 5312872 is 2782135.

It can be written as a sum of positive squares in only one way, i.e., 3740356 + 1572516 = 1934^2 + 1254^2 .

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 5312872.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332047 + ... + 332062.

Almost surely, 25312872 is an apocalyptic number.

It is an amenable number.

5312872 is a deficient number, since it is larger than the sum of its proper divisors (4648778).

5312872 is a wasteful number, since it uses less digits than its factorization.

5312872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664115 (or 664111 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 5312872 is about 2304.9668110409. The cubic root of 5312872 is about 174.4923738399.

It can be divided in two parts, 531 and 2872, that added together give a triangular number (3403 = T82).

The spelling of 5312872 in words is "five million, three hundred twelve thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 664109 1328218 2656436 5312872