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10023221020 = 2252571950043
BaseRepresentation
bin10010101010110111…
…00011011100011100
3221212112110101101011
421111123203130130
5131011421033040
64334332225004
7503245654501
oct112533433434
927775411334
1010023221020
11428393533a
121b3890b164
13c3975aa17
146b12894a8
153d9e483ea
hex2556e371c

10023221020 has 24 divisors (see below), whose sum is σ = 21130676784. Its totient is φ = 3993686016.

The previous prime is 10023221003. The next prime is 10023221051. The reversal of 10023221020 is 2012232001.

It is a super-3 number, since 3×100232210203 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969882 + ... + 980161.

It is an arithmetic number, because the mean of its divisors is an integer number (880444866).

Almost surely, 210023221020 is an apocalyptic number.

10023221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10023221020 is an abundant number, since it is smaller than the sum of its proper divisors (11107455764).

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

10023221020 is a wasteful number, since it uses less digits than its factorization.

10023221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950309 (or 1950307 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 10023221020 its reverse (2012232001), we get a palindrome (12035453021).

The spelling of 10023221020 in words is "ten billion, twenty-three million, two hundred twenty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 257 514 1028 1285 2570 5140 1950043 3900086 7800172 9750215 19500430 39000860 501161051 1002322102 2004644204 2505805255 5011610510 10023221020