Search a number
-
+
10720580 = 2251341233
BaseRepresentation
bin101000111001…
…010101000100
3202011122212112
4220321111010
510221024310
61021440152
7160060223
oct50712504
922148775
1010720580
116062592
123710058
1322b4850
1415d0cba
15e1b705
hexa39544

10720580 has 24 divisors (see below), whose sum is σ = 24245592. Its totient is φ = 3958272.

The previous prime is 10720573. The next prime is 10720583. The reversal of 10720580 is 8502701.

It can be written as a sum of positive squares in 4 ways, for example, as 53824 + 10666756 = 232^2 + 3266^2 .

It is a super-2 number, since 2×107205802 = 229861671072800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10720583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20357 + ... + 20876.

It is an arithmetic number, because the mean of its divisors is an integer number (1010233).

Almost surely, 210720580 is an apocalyptic number.

10720580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10720580 is an abundant number, since it is smaller than the sum of its proper divisors (13525012).

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

10720580 is a wasteful number, since it uses less digits than its factorization.

10720580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41255 (or 41253 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 10720580 is about 3274.2296803981. The cubic root of 10720580 is about 220.4987308027.

The spelling of 10720580 in words is "ten million, seven hundred twenty thousand, five hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 41233 82466 164932 206165 412330 536029 824660 1072058 2144116 2680145 5360290 10720580