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10880145 = 325241781
BaseRepresentation
bin101001100000…
…010010010001
3202110202202100
4221200102101
510241131040
61025111013
7161323353
oct51402221
922422670
1010880145
116161461
123788469
13233c373
1416330d3
15e4db30
hexa60491

10880145 has 12 divisors (see below), whose sum is σ = 18858996. Its totient is φ = 5802720.

The previous prime is 10880099. The next prime is 10880147. The reversal of 10880145 is 54108801.

It can be written as a sum of positive squares in 2 ways, for example, as 7935489 + 2944656 = 2817^2 + 1716^2 .

It is not a de Polignac number, because 10880145 - 212 = 10876049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10880147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120846 + ... + 120935.

It is an arithmetic number, because the mean of its divisors is an integer number (1571583).

Almost surely, 210880145 is an apocalyptic number.

10880145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10880145 is a deficient number, since it is larger than the sum of its proper divisors (7978851).

10880145 is a wasteful number, since it uses less digits than its factorization.

10880145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241792 (or 241789 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 10880145 is about 3298.5064802119. The cubic root of 10880145 is about 221.5873146414.

Adding to 10880145 its reverse (54108801), we get a palindrome (64988946).

It can be divided in two parts, 10880 and 145, that added together give a square (11025 = 1052).

The spelling of 10880145 in words is "ten million, eight hundred eighty thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 45 241781 725343 1208905 2176029 3626715 10880145