Search a number
-
+
623042825 = 52534311091
BaseRepresentation
bin100101001000101…
…110000100001001
31121102100212002012
4211020232010021
52233444332300
6141453545305
721303530246
oct4510560411
91542325065
10623042825
1129a767329
121547a5235
139c105cc2
145ca645cd
1539a70435
hex2522e109

623042825 has 24 divisors (see below), whose sum is σ = 789699456. Its totient is φ = 487448000.

The previous prime is 623042803. The next prime is 623042863. The reversal of 623042825 is 528240326.

It is not a de Polignac number, because 623042825 - 210 = 623041801 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 623042791 and 623042800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 570530 + ... + 571620.

It is an arithmetic number, because the mean of its divisors is an integer number (32904144).

Almost surely, 2623042825 is an apocalyptic number.

It is an amenable number.

623042825 is a deficient number, since it is larger than the sum of its proper divisors (166656631).

623042825 is a wasteful number, since it uses less digits than its factorization.

623042825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585 (or 1580 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 623042825 is about 24960.8258076531. The cubic root of 623042825 is about 854.0945808953.

The spelling of 623042825 in words is "six hundred twenty-three million, forty-two thousand, eight hundred twenty-five".

Divisors: 1 5 25 53 265 431 1091 1325 2155 5455 10775 22843 27275 57823 114215 289115 470221 571075 1445575 2351105 11755525 24921713 124608565 623042825