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2125623 = 31574513
BaseRepresentation
bin1000000110111100110111
310222222210210
420012330313
51021004443
6113320503
724032103
oct10067467
93888723
102125623
111222015
12866133
13595686
143d4903
152bec33
hex206f37

2125623 has 8 divisors (see below), whose sum is σ = 2852848. Its totient is φ = 1407744.

The previous prime is 2125621. The next prime is 2125649. The reversal of 2125623 is 3265212.

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

It is not a de Polignac number, because 2125623 - 21 = 2125621 is a prime.

It is a Duffinian number.

2125623 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2125623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125621) 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, 1786 + ... + 2727.

It is an arithmetic number, because the mean of its divisors is an integer number (356606).

22125623 is an apocalyptic number.

2125623 is a deficient number, since it is larger than the sum of its proper divisors (727225).

2125623 is a wasteful number, since it uses less digits than its factorization.

2125623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673.

The product of its digits is 720, while the sum is 21.

The square root of 2125623 is about 1457.9516452887. The cubic root of 2125623 is about 128.5766422930.

The spelling of 2125623 in words is "two million, one hundred twenty-five thousand, six hundred twenty-three".

Divisors: 1 3 157 471 4513 13539 708541 2125623