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10200072825 = 34527369001
BaseRepresentation
bin10010111111111100…
…01100001001111001
3222022212020101110000
421133332030021321
5131342204312300
64404050543213
7510524121435
oct113776141171
928285211400
1010200072825
114364747758
121b87b97b09
13c6729b967
146ca9639c5
153ea72dc00
hex25ff8c279

10200072825 has 60 divisors (see below), whose sum is σ = 19153161148. Its totient is φ = 5365440000.

The previous prime is 10200072793. The next prime is 10200072829. The reversal of 10200072825 is 52827000201.

It can be written as a sum of positive squares in 6 ways, for example, as 1925805456 + 8274267369 = 43884^2 + 90963^2 .

It is not a de Polignac number, because 10200072825 - 25 = 10200072793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200072829) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 113325 + ... + 182325.

Almost surely, 210200072825 is an apocalyptic number.

10200072825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10200072825 is a deficient number, since it is larger than the sum of its proper divisors (8953088323).

10200072825 is an equidigital number, since it uses as much as digits as its factorization.

10200072825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69096 (or 69082 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The spelling of 10200072825 in words is "ten billion, two hundred million, seventy-two thousand, eight hundred twenty-five".

Divisors: 1 3 5 9 15 25 27 45 73 75 81 135 219 225 365 405 657 675 1095 1825 1971 2025 3285 5475 5913 9855 16425 29565 49275 69001 147825 207003 345005 621009 1035015 1725025 1863027 3105045 5037073 5175075 5589081 9315135 15111219 15525225 25185365 27945405 45333657 46575675 75556095 125926825 136000971 139727025 226668285 377780475 408002913 680004855 1133341425 2040014565 3400024275 10200072825