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10811020 = 22511157313
BaseRepresentation
bin101001001111…
…011010001100
3202100020221011
4221033122030
510231423040
61023415004
7160615003
oct51173214
922306834
1010811020
116114530
123754464
132316a6c
141615c3a
15e383ea
hexa4f68c

10811020 has 48 divisors (see below), whose sum is σ = 25004448. Its totient is φ = 3893760.

The previous prime is 10811011. The next prime is 10811023. The reversal of 10811020 is 2011801.

10811020 = T197 + T198 + ... + T416.

10811020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (10811023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34384 + ... + 34696.

It is an arithmetic number, because the mean of its divisors is an integer number (520926).

Almost surely, 210811020 is an apocalyptic number.

10811020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10811020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12502224).

10811020 is an abundant number, since it is smaller than the sum of its proper divisors (14193428).

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

10811020 is a wasteful number, since it uses less digits than its factorization.

10811020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 10811020 is about 3288.0115571573. The cubic root of 10811020 is about 221.1170458936.

Adding to 10811020 its reverse (2011801), we get a palindrome (12822821).

The spelling of 10811020 in words is "ten million, eight hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 157 220 313 314 626 628 785 1252 1565 1570 1727 3130 3140 3443 3454 6260 6886 6908 8635 13772 17215 17270 34430 34540 49141 68860 98282 196564 245705 491410 540551 982820 1081102 2162204 2702755 5405510 10811020