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10205100140 = 225510255007
BaseRepresentation
bin10011000000100010…
…10111100001101100
3222100012200210121212
421200101113201230
5131400001201030
64404350413552
7510614630354
oct114021274154
928305623555
1010205100140
114367570864
121b898012b8
13c6833bcc1
146cb4b1b64
153eadc3595
hex26045786c

10205100140 has 12 divisors (see below), whose sum is σ = 21430710336. Its totient is φ = 4082040048.

The previous prime is 10205100137. The next prime is 10205100167. The reversal of 10205100140 is 4100150201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255127484 + ... + 255127523.

It is an arithmetic number, because the mean of its divisors is an integer number (1785892528).

Almost surely, 210205100140 is an apocalyptic number.

10205100140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10205100140 is an abundant number, since it is smaller than the sum of its proper divisors (11225610196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10205100140 is a wasteful number, since it uses less digits than its factorization.

10205100140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510255016 (or 510255014 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 10205100140 its reverse (4100150201), we get a palindrome (14305250341).

The spelling of 10205100140 in words is "ten billion, two hundred five million, one hundred thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 510255007 1020510014 2041020028 2551275035 5102550070 10205100140