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2113020 = 2233571343
BaseRepresentation
bin1000000011110111111100
310222100112000
420003313330
51020104040
6113142300
723650260
oct10036774
93870460
102113020
1112135a8
1285a990
1358ca10
143d00a0
152bb130
hex203dfc

2113020 has 192 divisors, whose sum is σ = 8279040. Its totient is φ = 435456.

The previous prime is 2113003. The next prime is 2113037. The reversal of 2113020 is 203112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2113003) and next prime (2113037).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2112993 and 2113011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49119 + ... + 49161.

It is an arithmetic number, because the mean of its divisors is an integer number (43120).

22113020 is an apocalyptic number.

2113020 is a gapful number since it is divisible by the number (20) 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 2113020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4139520).

2113020 is an abundant number, since it is smaller than the sum of its proper divisors (6166020).

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

2113020 is a wasteful number, since it uses less digits than its factorization.

2113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2113020 is about 1453.6230598061. The cubic root of 2113020 is about 128.3220244528.

Adding to 2113020 its reverse (203112), we get a palindrome (2316132).

It can be divided in two parts, 21 and 13020, that added together give a triangular number (13041 = T161).

The spelling of 2113020 in words is "two million, one hundred thirteen thousand, twenty".