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2040215 = 523113157
BaseRepresentation
bin111110010000110010111
310211122122112
413302012113
51010241330
6111421235
723225102
oct7620627
93748575
102040215
111173931
1282481b
13565838
143b1739
152a4795
hex1f2197

2040215 has 16 divisors (see below), whose sum is σ = 2593728. Its totient is φ = 1537536.

The previous prime is 2040211. The next prime is 2040229. The reversal of 2040215 is 5120402.

It is a cyclic number.

It is not a de Polignac number, because 2040215 - 22 = 2040211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2040215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040211) 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, 12917 + ... + 13073.

It is an arithmetic number, because the mean of its divisors is an integer number (162108).

22040215 is an apocalyptic number.

2040215 is a deficient number, since it is larger than the sum of its proper divisors (553513).

2040215 is a wasteful number, since it uses less digits than its factorization.

2040215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2040215 is about 1428.3609487801. The cubic root of 2040215 is about 126.8309694578.

Adding to 2040215 its reverse (5120402), we get a palindrome (7160617).

The spelling of 2040215 in words is "two million, forty thousand, two hundred fifteen".

Divisors: 1 5 23 113 115 157 565 785 2599 3611 12995 17741 18055 88705 408043 2040215