Search a number
-
+
10520245120 = 275721130497
BaseRepresentation
bin10011100110000111…
…00011001110000000
31000011011200211021011
421303003203032000
5133021140320440
64455525210304
7521462415400
oct116303431600
930134624234
1010520245120
114509449960
122057260994
13cb8710418
1471b2a8800
154188c49ea
hex2730e3380

10520245120 has 192 divisors, whose sum is σ = 31916766960. Its totient is φ = 3278929920.

The previous prime is 10520245091. The next prime is 10520245121. The reversal of 10520245120 is 2154202501.

It is a super-2 number, since 2×105202451202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 10520245091 and 10520245100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10520245121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329712 + ... + 360208.

Almost surely, 210520245120 is an apocalyptic number.

10520245120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10520245120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15958383480).

10520245120 is an abundant number, since it is smaller than the sum of its proper divisors (21396521840).

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

10520245120 is a wasteful number, since it uses less digits than its factorization.

10520245120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30541 (or 30522 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 10520245120 its reverse (2154202501), we get a palindrome (12674447621).

The spelling of 10520245120 in words is "ten billion, five hundred twenty million, two hundred forty-five thousand, one hundred twenty".