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2120293 = 71012999
BaseRepresentation
bin1000000101101001100101
310222201111101
420011221211
51020322133
6113240101
724010420
oct10055145
93881441
102120293
11121900a
12863031
13593116
143d29b7
152bd37d
hex205a65

2120293 has 8 divisors (see below), whose sum is σ = 2448000. Its totient is φ = 1798800.

The previous prime is 2120269. The next prime is 2120297. The reversal of 2120293 is 3920212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2120293 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 2120293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793 + ... + 2206.

It is an arithmetic number, because the mean of its divisors is an integer number (306000).

22120293 is an apocalyptic number.

It is an amenable number.

2120293 is a deficient number, since it is larger than the sum of its proper divisors (327707).

2120293 is a wasteful number, since it uses less digits than its factorization.

2120293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2120293 is about 1456.1225909929. The cubic root of 2120293 is about 128.4690836916.

It can be divided in two parts, 2 and 120293, that added together give a triangular number (120295 = T490).

The spelling of 2120293 in words is "two million, one hundred twenty thousand, two hundred ninety-three".

Divisors: 1 7 101 707 2999 20993 302899 2120293