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872235 = 33571371
BaseRepresentation
bin11010100111100101011
31122022111000
43110330223
5210402420
630410043
710261650
oct3247453
91568430
10872235
11546361
12360923
13247020
14189c27
15123690
hexd4f2b

872235 has 64 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 362880.

The previous prime is 872231. The next prime is 872237. The reversal of 872235 is 532278.

872235 = 2532 + 2542 + ... + 2652.

872235 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 872235 - 22 = 872231 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a d-powerful number, because it can be written as 85 + 77 + 24 + 28 + 33 + 56 .

Its product of digits (3360) is a multiple of the sum of its prime factors (105).

872235 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 872199 and 872208.

It is not an unprimeable number, because it can be changed into a prime (872231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12250 + ... + 12320.

It is an arithmetic number, because the mean of its divisors is an integer number (30240).

2872235 is an apocalyptic number.

872235 is an abundant number, since it is smaller than the sum of its proper divisors (1063125).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

872235 is a wasteful number, since it uses less digits than its factorization.

872235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 99 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 872235 is about 933.9352225931. The cubic root of 872235 is about 95.5457051220.

The spelling of 872235 in words is "eight hundred seventy-two thousand, two hundred thirty-five".

Divisors: 1 3 5 7 9 13 15 21 27 35 39 45 63 65 71 91 105 117 135 189 195 213 273 315 351 355 455 497 585 639 819 923 945 1065 1365 1491 1755 1917 2457 2485 2769 3195 4095 4473 4615 6461 7455 8307 9585 12285 13419 13845 19383 22365 24921 32305 41535 58149 67095 96915 124605 174447 290745 872235