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11210020 = 225560501
BaseRepresentation
bin101010110000…
…110100100100
3210002112020221
4222300310210
510332210040
61040134124
7164166163
oct52606444
923075227
1011210020
116367288
123907344
132426563
1416bb3da
15eb674a
hexab0d24

11210020 has 12 divisors (see below), whose sum is σ = 23541084. Its totient is φ = 4484000.

The previous prime is 11210011. The next prime is 11210029. The reversal of 11210020 is 2001211.

It is an interprime number because it is at equal distance from previous prime (11210011) and next prime (11210029).

It can be written as a sum of positive squares in 2 ways, for example, as 8020224 + 3189796 = 2832^2 + 1786^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11209985 and 11210012.

It is not an unprimeable number, because it can be changed into a prime (11210029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280231 + ... + 280270.

It is an arithmetic number, because the mean of its divisors is an integer number (1961757).

Almost surely, 211210020 is an apocalyptic number.

11210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11210020 is an abundant number, since it is smaller than the sum of its proper divisors (12331064).

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

11210020 is a wasteful number, since it uses less digits than its factorization.

11210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560510 (or 560508 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 11210020 is about 3348.1367952938. The cubic root of 11210020 is about 223.8044903335.

Adding to 11210020 its reverse (2001211), we get a palindrome (13211231).

The spelling of 11210020 in words is "eleven million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 560501 1121002 2242004 2802505 5605010 11210020