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10012202125 = 53122965173
BaseRepresentation
bin10010101001100011…
…00001010010001101
3221211202201120021221
421110301201102031
5131001110432000
64333300123341
7503053212442
oct112461412215
927752646257
1010012202125
114278699712
121b35096551
13c373a0473
146ada1b9c9
153d8ebd61a
hex254c6148d

10012202125 has 16 divisors (see below), whose sum is σ = 12505587120. Its totient is φ = 8003121600.

The previous prime is 10012202113. The next prime is 10012202129. The reversal of 10012202125 is 52120221001.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3655169764 + 6357032361 = 60458^2 + 79731^2 .

It is not a de Polignac number, because 10012202125 - 25 = 10012202093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10012202099 and 10012202108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012202129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121039 + ... + 186211.

It is an arithmetic number, because the mean of its divisors is an integer number (781599195).

Almost surely, 210012202125 is an apocalyptic number.

It is an amenable number.

10012202125 is a deficient number, since it is larger than the sum of its proper divisors (2493384995).

10012202125 is an equidigital number, since it uses as much as digits as its factorization.

10012202125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66417 (or 66407 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 10012202125 its reverse (52120221001), we get a palindrome (62132423126).

The spelling of 10012202125 in words is "ten billion, twelve million, two hundred two thousand, one hundred twenty-five".

Divisors: 1 5 25 125 1229 6145 30725 65173 153625 325865 1629325 8146625 80097617 400488085 2002440425 10012202125