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10820430 = 23251091103
BaseRepresentation
bin101001010001…
…101101001110
3202100201211200
4221101231032
510232223210
61023530330
7160654305
oct51215516
922321750
1010820430
116120605
1237599a6
13231b12a
14161943c
15e3b0c0
hexa51b4e

10820430 has 48 divisors (see below), whose sum is σ = 28416960. Its totient is φ = 2856384.

The previous prime is 10820413. The next prime is 10820437. The reversal of 10820430 is 3402801.

It is a happy number.

10820430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10820437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9259 + ... + 10361.

It is an arithmetic number, because the mean of its divisors is an integer number (592020).

Almost surely, 210820430 is an apocalyptic number.

10820430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10820430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14208480).

10820430 is an abundant number, since it is smaller than the sum of its proper divisors (17596530).

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

10820430 is a wasteful number, since it uses less digits than its factorization.

10820430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225 (or 1222 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 10820430 is about 3289.4422019546. The cubic root of 10820430 is about 221.1811813160.

The spelling of 10820430 in words is "ten million, eight hundred twenty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 109 218 327 545 654 981 1090 1103 1635 1962 2206 3270 3309 4905 5515 6618 9810 9927 11030 16545 19854 33090 49635 99270 120227 240454 360681 601135 721362 1082043 1202270 1803405 2164086 3606810 5410215 10820430