Search a number
-
+
305502425 = 52193791697
BaseRepresentation
bin10010001101011…
…001100011011001
3210021212010112122
4102031121203121
51111202034200
650151551025
710366504424
oct2215314331
9707763478
10305502425
111474a2548
128638b475
134b3a6487
142c8069bb
151bc49385
hex123598d9

305502425 has 24 divisors (see below), whose sum is σ = 400048800. Its totient is φ = 230791680.

The previous prime is 305502409. The next prime is 305502481. The reversal of 305502425 is 524205503.

It is not a de Polignac number, because 305502425 - 24 = 305502409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 305502394 and 305502403.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179177 + ... + 180873.

It is an arithmetic number, because the mean of its divisors is an integer number (16668700).

Almost surely, 2305502425 is an apocalyptic number.

It is an amenable number.

305502425 is a deficient number, since it is larger than the sum of its proper divisors (94546375).

305502425 is a wasteful number, since it uses less digits than its factorization.

305502425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105 (or 2100 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 305502425 is about 17478.6276635210. The cubic root of 305502425 is about 673.5009623873.

Adding to 305502425 its reverse (524205503), we get a palindrome (829707928).

The spelling of 305502425 in words is "three hundred five million, five hundred two thousand, four hundred twenty-five".

Divisors: 1 5 19 25 95 379 475 1697 1895 7201 8485 9475 32243 36005 42425 161215 180025 643163 806075 3215815 12220097 16079075 61100485 305502425