Search a number
-
+
20525003010 = 2325892925541
BaseRepresentation
bin10011000111011000…
…101011000100000010
31221222102102011222200
4103013120223010002
5314013400044020
613232402014030
71324425434631
oct230730530402
957872364880
1020525003010
118782913606
123b89947316
131c213a53c5
14dc9d09518
15801dc2590
hex4c762b102

20525003010 has 48 divisors (see below), whose sum is σ = 53373074040. Its totient is φ = 5472506880.

The previous prime is 20525003003. The next prime is 20525003011. The reversal of 20525003010 is 1030052502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10269187569 + 10255815441 = 101337^2 + 101271^2 .

It is a super-3 number, since 3×205250030103 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20525003011) 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, 790840 + ... + 816380.

Almost surely, 220525003010 is an apocalyptic number.

20525003010 is an abundant number, since it is smaller than the sum of its proper divisors (32848071030).

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

20525003010 is a wasteful number, since it uses less digits than its factorization.

20525003010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34483 (or 34480 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

Adding to 20525003010 its reverse (1030052502), we get a palindrome (21555055512).

The spelling of 20525003010 in words is "twenty billion, five hundred twenty-five million, three thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 8929 17858 25541 26787 44645 51082 53574 76623 80361 89290 127705 133935 153246 160722 229869 255410 267870 383115 401805 459738 766230 803610 1149345 2298690 228055589 456111178 684166767 1140277945 1368333534 2052500301 2280555890 3420833835 4105000602 6841667670 10262501505 20525003010