Search a number
-
+
10200010000 = 24541020001
BaseRepresentation
bin10010111111111011…
…11100110100010000
3222022212010012021011
421133331330310100
5131342200310000
64404045340304
7510523440325
oct113775746420
928285105234
1010200010000
114364704534
121b87b67694
13c6727919b
146ca948b4c
153ea71a2ba
hex25ff7cd10

10200010000 has 50 divisors (see below), whose sum is σ = 24695268422. Its totient is φ = 4080000000.

The previous prime is 10200009961. The next prime is 10200010001. The reversal of 10200010000 is 1000201.

It can be written as a sum of positive squares in 5 ways, for example, as 3512695824 + 6687314176 = 59268^2 + 81776^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-3 number, since 3×102000100003 (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (4).

It is not an unprimeable number, because it can be changed into a prime (10200010001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 500001 + ... + 520000.

Almost surely, 210200010000 is an apocalyptic number.

10200010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10200010000 is an abundant number, since it is smaller than the sum of its proper divisors (14495258422).

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

10200010000 is an equidigital number, since it uses as much as digits as its factorization.

10200010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020029 (or 1020008 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

Adding to 10200010000 its reverse (1000201), we get a palindrome (10201010201).

The spelling of 10200010000 in words is "ten billion, two hundred million, ten thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 5000 10000 1020001 2040002 4080004 5100005 8160008 10200010 16320016 20400020 25500025 40800040 51000050 81600080 102000100 127500125 204000200 255000250 408000400 510000500 637500625 1020001000 1275001250 2040002000 2550002500 5100005000 10200010000