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10500100900 = 2252102472
BaseRepresentation
bin10011100011101101…
…01101001100100100
31000002202210101120221
421301312231030210
5133001011212100
64453525334124
7521126246032
oct116166551444
930082711527
1010500100900
1144a9040243
122050567344
13cb44a9473
14718743552
15416c4601a
hex271dad324

10500100900 has 27 divisors (see below), whose sum is σ = 22787442769. Its totient is φ = 4199630480.

The previous prime is 10500100889. The next prime is 10500100903. The reversal of 10500100900 is 900100501.

The square root of 10500100900 is 102470.

It is a perfect power (a square), and thus also a powerful number.

10500100900 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 only one way, i.e., 3780036324 + 6720064576 = 61482^2 + 81976^2 .

It is a super-2 number, since 2×105001009002 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10500100903) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 1019577 + ... + 1029823.

Almost surely, 210500100900 is an apocalyptic number.

10500100900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10500100900 is the 102470-th square number.

It is an amenable number.

10500100900 is an abundant number, since it is smaller than the sum of its proper divisors (12287341869).

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

10500100900 is an frugal number, since it uses more digits than its factorization.

10500100900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20508 (or 10254 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 16.

Multiplying 10500100900 by its sum of digits (16), we get a square (168001614400 = 4098802).

The spelling of 10500100900 in words is "ten billion, five hundred million, one hundred thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 10247 20494 40988 51235 102470 204940 256175 512350 1024700 105001009 210002018 420004036 525005045 1050010090 2100020180 2625025225 5250050450 10500100900