Search a number
-
+
10869620 = 2251015381
BaseRepresentation
bin101001011101…
…101101110100
3202110020022112
4221131231310
510240311440
61024550152
7161250566
oct51355564
922406275
1010869620
116154563
123782358
132337638
14162d336
15e4a965
hexa5db74

10869620 has 24 divisors (see below), whose sum is σ = 23056488. Its totient is φ = 4304000.

The previous prime is 10869587. The next prime is 10869631. The reversal of 10869620 is 2696801.

It can be written as a sum of positive squares in 4 ways, for example, as 2735716 + 8133904 = 1654^2 + 2852^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671 + ... + 4710.

It is an arithmetic number, because the mean of its divisors is an integer number (960687).

Almost surely, 210869620 is an apocalyptic number.

10869620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10869620 is an abundant number, since it is smaller than the sum of its proper divisors (12186868).

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

10869620 is a wasteful number, since it uses less digits than its factorization.

10869620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491 (or 5489 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 10869620 is about 3296.9106751624. The cubic root of 10869620 is about 221.5158401369.

The spelling of 10869620 in words is "ten million, eight hundred sixty-nine thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 5381 10762 21524 26905 53810 107620 543481 1086962 2173924 2717405 5434810 10869620