Search a number
-
+
25303072 = 2517193241
BaseRepresentation
bin110000010000…
…1100000100000
31202121112021211
41200201200200
522434144242
62302155504
7425033614
oct140414040
952545254
1025303072
1113312633
128582b94
13531c142
143509344
15234c317
hex1821820

25303072 has 48 divisors (see below), whose sum is σ = 53239032. Its totient is φ = 11796480.

The previous prime is 25303067. The next prime is 25303081. The reversal of 25303072 is 27030352.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23775376 + 1527696 = 4876^2 + 1236^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104872 + ... + 105112.

Almost surely, 225303072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25303072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26619516).

25303072 is an abundant number, since it is smaller than the sum of its proper divisors (27935960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25303072 is a wasteful number, since it uses less digits than its factorization.

25303072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 25303072 is about 5030.2158999391. The cubic root of 25303072 is about 293.5786148600.

The spelling of 25303072 in words is "twenty-five million, three hundred three thousand, seventy-two".

Divisors: 1 2 4 8 16 17 32 34 68 136 193 241 272 386 482 544 772 964 1544 1928 3088 3281 3856 4097 6176 6562 7712 8194 13124 16388 26248 32776 46513 52496 65552 93026 104992 131104 186052 372104 744208 790721 1488416 1581442 3162884 6325768 12651536 25303072