Search a number
-
+
32865380 = 2251643269
BaseRepresentation
bin111110101011…
…1110001100100
32021211201211022
41331113301210
531403143010
63132230312
7546231302
oct175276144
967751738
1032865380
1117608279
12b00b398
136a69292
144517272
152d42d55
hex1f57c64

32865380 has 12 divisors (see below), whose sum is σ = 69017340. Its totient is φ = 13146144.

The previous prime is 32865379. The next prime is 32865389. The reversal of 32865380 is 8356823.

It can be written as a sum of positive squares in 2 ways, for example, as 21141604 + 11723776 = 4598^2 + 3424^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32865380.

It is not an unprimeable number, because it can be changed into a prime (32865389) 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, 821615 + ... + 821654.

It is an arithmetic number, because the mean of its divisors is an integer number (5751445).

Almost surely, 232865380 is an apocalyptic number.

It is an amenable number.

32865380 is an abundant number, since it is smaller than the sum of its proper divisors (36151960).

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

32865380 is a wasteful number, since it uses less digits than its factorization.

32865380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643278 (or 1643276 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 32865380 is about 5732.8335053445. The cubic root of 32865380 is about 320.3166786923.

The spelling of 32865380 in words is "thirty-two million, eight hundred sixty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 1643269 3286538 6573076 8216345 16432690 32865380