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10775478025 = 5213215972
BaseRepresentation
bin10100000100100010…
…01011111100001001
31000210221221222222201
422002101023330021
5134032010244100
64541123520201
7531012023554
oct120221137411
930727858881
1010775478025
11462a527144
122108829061
131029565900
1474314769b
15430ede36a
hex28244bf09

10775478025 has 27 divisors (see below), whose sum is σ = 14477535711. Its totient is φ = 7952293440.

The previous prime is 10775478023. The next prime is 10775478029. The reversal of 10775478025 is 52087457701.

The square root of 10775478025 is 103805.

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

It can be written as a sum of positive squares in 13 ways, for example, as 10725294969 + 50183056 = 103563^2 + 7084^2 .

It is not a de Polignac number, because 10775478025 - 21 = 10775478023 is a prime.

It is a super-2 number, since 2×107754780252 (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 (10775478023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6746527 + ... + 6748123.

Almost surely, 210775478025 is an apocalyptic number.

10775478025 is the 103805-th square number.

10775478025 is the 51903-rd centered octagonal number.

It is an amenable number.

10775478025 is a deficient number, since it is larger than the sum of its proper divisors (3702057686).

10775478025 is an frugal number, since it uses more digits than its factorization.

10775478025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230 (or 1615 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 46.

The spelling of 10775478025 in words is "ten billion, seven hundred seventy-five million, four hundred seventy-eight thousand, twenty-five".

Divisors: 1 5 13 25 65 169 325 845 1597 4225 7985 20761 39925 103805 269893 519025 1349465 2550409 6747325 12752045 33155317 63760225 165776585 431019121 828882925 2155095605 10775478025