Search a number
-
+
10857105 = 335711489
BaseRepresentation
bin101001011010…
…101010010001
3202102121011000
4221122222101
510234411410
61024412213
7161166240
oct51325221
922377130
1010857105
116146116
123777069
132331a2c
141628957
15e46dc0
hexa5aa91

10857105 has 32 divisors (see below), whose sum is σ = 22060800. Its totient is φ = 4962816.

The previous prime is 10857097. The next prime is 10857137. The reversal of 10857105 is 50175801.

It is not a de Polignac number, because 10857105 - 23 = 10857097 is a prime.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4800 + ... + 6689.

It is an arithmetic number, because the mean of its divisors is an integer number (689400).

Almost surely, 210857105 is an apocalyptic number.

10857105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10857105 is an abundant number, since it is smaller than the sum of its proper divisors (11203695).

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

10857105 is a wasteful number, since it uses less digits than its factorization.

10857105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11510 (or 11504 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 10857105 is about 3295.0121395831. The cubic root of 10857105 is about 221.4307916134.

The spelling of 10857105 in words is "ten million, eight hundred fifty-seven thousand, one hundred five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 315 945 11489 34467 57445 80423 103401 172335 241269 310203 402115 517005 723807 1206345 1551015 2171421 3619035 10857105