Search a number
-
+
25450110031231 = 237115584880607
BaseRepresentation
bin1011100100101100100001…
…10001001001010101111111
310100010000011221000100011101
411302112100301021111333
511313433311131444411
6130043341422433531
75234465310642424
oct562262061112577
9110100157010141
1025450110031231
1181223706a2046
122a3049a4328a7
131127c2049c692
1463db12d79d4b
152e203832c8c1
hex172590c4957f

25450110031231 has 8 divisors (see below), whose sum is σ = 26930673690624. Its totient is φ = 24000716133240.

The previous prime is 25450110031153. The next prime is 25450110031267. The reversal of 25450110031231 is 13213001105452.

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

It is a cyclic number.

It is not a de Polignac number, because 25450110031231 - 233 = 25441520096639 is a prime.

It is a super-2 number, since 2×254501100312312 (a number of 28 digits) contains 22 as substring.

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 25450110031231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25450110061231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7792438671 + ... + 7792441936.

It is an arithmetic number, because the mean of its divisors is an integer number (3366334211328).

Almost surely, 225450110031231 is an apocalyptic number.

25450110031231 is a deficient number, since it is larger than the sum of its proper divisors (1480563659393).

25450110031231 is a wasteful number, since it uses less digits than its factorization.

25450110031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15584880701.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 25450110031231 its reverse (13213001105452), we get a palindrome (38663111136683).

The spelling of 25450110031231 in words is "twenty-five trillion, four hundred fifty billion, one hundred ten million, thirty-one thousand, two hundred thirty-one".

Divisors: 1 23 71 1633 15584880607 358452253961 1106526523097 25450110031231