Search a number
-
+
10870900 = 2252108709
BaseRepresentation
bin101001011110…
…000001110100
3202110022001221
4221132001310
510240332100
61025000124
7161254405
oct51360164
922408057
1010870900
116155517
123783044
1323380b1
14162d9ac
15e4b01a
hexa5e074

10870900 has 18 divisors (see below), whose sum is σ = 23590070. Its totient is φ = 4348320.

The previous prime is 10870829. The next prime is 10870901. The reversal of 10870900 is 907801.

It can be written as a sum of positive squares in 3 ways, for example, as 605284 + 10265616 = 778^2 + 3204^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10870901) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 54255 + ... + 54454.

Almost surely, 210870900 is an apocalyptic number.

10870900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10870900 is an abundant number, since it is smaller than the sum of its proper divisors (12719170).

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

10870900 is a wasteful number, since it uses less digits than its factorization.

10870900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108723 (or 108716 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 10870900 is about 3297.1047905701. The cubic root of 10870900 is about 221.5245349869.

The spelling of 10870900 in words is "ten million, eight hundred seventy thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 108709 217418 434836 543545 1087090 2174180 2717725 5435450 10870900