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32230081 = 132479237
BaseRepresentation
bin111101011110…
…0101011000001
32020122110100201
41322330223001
531222330311
63110445201
7540644152
oct172745301
966573321
1032230081
1117213a34
12a963801
1368a6070
1443cd929
152c699c1
hex1ebcac1

32230081 has 4 divisors (see below), whose sum is σ = 34709332. Its totient is φ = 29750832.

The previous prime is 32230067. The next prime is 32230097. The reversal of 32230081 is 18003223.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6677056 + 25553025 = 2584^2 + 5055^2 .

It is a cyclic number.

It is not a de Polignac number, because 32230081 - 211 = 32228033 is a prime.

It is a super-4 number, since 4×322300814 (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32230001) 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, 1239606 + ... + 1239631.

It is an arithmetic number, because the mean of its divisors is an integer number (8677333).

Almost surely, 232230081 is an apocalyptic number.

It is an amenable number.

32230081 is a deficient number, since it is larger than the sum of its proper divisors (2479251).

32230081 is a wasteful number, since it uses less digits than its factorization.

32230081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479250.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 32230081 is about 5677.1543047552. The cubic root of 32230081 is about 318.2392915623.

It can be divided in two parts, 322 and 30081, that added together give a palindrome (30403).

The spelling of 32230081 in words is "thirty-two million, two hundred thirty thousand, eighty-one".

Divisors: 1 13 2479237 32230081