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10172122850 = 252203442457
BaseRepresentation
bin10010111100100111…
…00100011011100010
3222020220122101021202
421132103210123202
5131313030412400
64401211521202
7510034421561
oct113623443342
928226571252
1010172122850
11434a9974aa
121b7a759202
13c61563b06
146c6d69bd8
153e805c4d5
hex25e4e46e2

10172122850 has 12 divisors (see below), whose sum is σ = 18920148594. Its totient is φ = 4068849120.

The previous prime is 10172122847. The next prime is 10172122861. The reversal of 10172122850 is 5822127101.

10172122850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 6564078361 + 3608044489 = 81019^2 + 60067^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101721179 + ... + 101721278.

Almost surely, 210172122850 is an apocalyptic number.

10172122850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10172122850 is a deficient number, since it is larger than the sum of its proper divisors (8748025744).

10172122850 is a wasteful number, since it uses less digits than its factorization.

10172122850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203442469 (or 203442464 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

Adding to 10172122850 its reverse (5822127101), we get a palindrome (15994249951).

The spelling of 10172122850 in words is "ten billion, one hundred seventy-two million, one hundred twenty-two thousand, eight hundred fifty".

Divisors: 1 2 5 10 25 50 203442457 406884914 1017212285 2034424570 5086061425 10172122850