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16102026025 = 52644081041
BaseRepresentation
bin11101111111100000…
…10110101100101001
31112120011210200012021
432333300112230221
5230434104313100
611221442144441
71110010651201
oct167760265451
945504720167
1016102026025
1169131a0528
123154652121
131697c58c67
14aca72d401
1564394aa1a
hex3bfc16b29

16102026025 has 6 divisors (see below), whose sum is σ = 19966512302. Its totient is φ = 12881620800.

The previous prime is 16102026023. The next prime is 16102026037. The reversal of 16102026025 is 52062020161.

It can be written as a sum of positive squares in 3 ways, for example, as 1191906576 + 14910119449 = 34524^2 + 122107^2 .

It is not a de Polignac number, because 16102026025 - 21 = 16102026023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 644081041 = 16102026025 / (1 + 6 + 1 + 0 + 2 + 0 + 2 + 6 + 0 + 2 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16102026023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 322040496 + ... + 322040545.

Almost surely, 216102026025 is an apocalyptic number.

It is an amenable number.

16102026025 is a deficient number, since it is larger than the sum of its proper divisors (3864486277).

16102026025 is an equidigital number, since it uses as much as digits as its factorization.

16102026025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644081051 (or 644081046 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 16102026025 its reverse (52062020161), we get a palindrome (68164046186).

The spelling of 16102026025 in words is "sixteen billion, one hundred two million, twenty-six thousand, twenty-five".

Divisors: 1 5 25 644081041 3220405205 16102026025