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8528269 = 10978241
BaseRepresentation
bin100000100010…
…000110001101
3121001021120211
4200202012031
54140401034
6502442421
7132326521
oct40420615
917037524
108528269
1148a5462
122a33411
1319c7a19
1411bdd81
15b36d64
hex82218d

8528269 has 4 divisors (see below), whose sum is σ = 8606620. Its totient is φ = 8449920.

The previous prime is 8528257. The next prime is 8528281. The reversal of 8528269 is 9628258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9628258 = 24814129.

It is an interprime number because it is at equal distance from previous prime (8528257) and next prime (8528281).

It can be written as a sum of positive squares in 2 ways, for example, as 7452900 + 1075369 = 2730^2 + 1037^2 .

It is a cyclic number.

It is not a de Polignac number, because 8528269 - 27 = 8528141 is a prime.

It is a super-2 number, since 2×85282692 = 145462744272722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8528209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39012 + ... + 39229.

It is an arithmetic number, because the mean of its divisors is an integer number (2151655).

Almost surely, 28528269 is an apocalyptic number.

It is an amenable number.

8528269 is a deficient number, since it is larger than the sum of its proper divisors (78351).

8528269 is a wasteful number, since it uses less digits than its factorization.

8528269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78350.

The product of its digits is 69120, while the sum is 40.

The square root of 8528269 is about 2920.3200167105. The cubic root of 8528269 is about 204.3087484884.

The spelling of 8528269 in words is "eight million, five hundred twenty-eight thousand, two hundred sixty-nine".

Divisors: 1 109 78241 8528269