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20412514025 = 524012036161
BaseRepresentation
bin10011000000101011…
…100011111011101001
31221200120202011002222
4103000223203323221
5313301100422100
613213303003425
71321561335461
oct230053437351
957616664088
1020412514025
118725371a02
123b58139575
131c03cab187
14db8dc6ba1
157e70a2485
hex4c0ae3ee9

20412514025 has 12 divisors (see below), whose sum is σ = 25374650844. Its totient is φ = 16289280000.

The previous prime is 20412514009. The next prime is 20412514051. The reversal of 20412514025 is 52041521402.

It can be written as a sum of positive squares in 6 ways, for example, as 16104169 + 20396409856 = 4013^2 + 142816^2 .

It is not a de Polignac number, because 20412514025 - 24 = 20412514009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20412513985 and 20412514003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1008056 + ... + 1028105.

It is an arithmetic number, because the mean of its divisors is an integer number (2114554237).

Almost surely, 220412514025 is an apocalyptic number.

20412514025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20412514025 is a deficient number, since it is larger than the sum of its proper divisors (4962136819).

20412514025 is a wasteful number, since it uses less digits than its factorization.

20412514025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036572 (or 2036567 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 20412514025 in words is "twenty billion, four hundred twelve million, five hundred fourteen thousand, twenty-five".

Divisors: 1 5 25 401 2005 10025 2036161 10180805 50904025 816500561 4082502805 20412514025