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2115023 = 19111317
BaseRepresentation
bin1000000100010111001111
310222110021012
420010113033
51020140043
6113155435
723656151
oct10042717
93873235
102115023
111215059
1285bb7b
135908c1
143d0ad1
152bba18
hex2045cf

2115023 has 4 divisors (see below), whose sum is σ = 2226360. Its totient is φ = 2003688.

The previous prime is 2115017. The next prime is 2115049. The reversal of 2115023 is 3205112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2115023 - 24 = 2115007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2114989 and 2115007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115013) 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, 55640 + ... + 55677.

It is an arithmetic number, because the mean of its divisors is an integer number (556590).

22115023 is an apocalyptic number.

2115023 is a deficient number, since it is larger than the sum of its proper divisors (111337).

2115023 is a wasteful number, since it uses less digits than its factorization.

2115023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111336.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2115023 is about 1454.3118647663. The cubic root of 2115023 is about 128.3625585134.

The spelling of 2115023 in words is "two million, one hundred fifteen thousand, twenty-three".

Divisors: 1 19 111317 2115023