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10121045 = 511216729
BaseRepresentation
bin100110100110…
…111101010101
3201001012110112
4212212331111
510042333140
61000532405
7152012264
oct46467525
921035415
1010121045
115793100
123481105
1321349ac
1414b65db
15d4dc65
hex9a6f55

10121045 has 12 divisors (see below), whose sum is σ = 13350540. Its totient is φ = 7360320.

The previous prime is 10121009. The next prime is 10121063. The reversal of 10121045 is 54012101.

It can be written as a sum of positive squares in 2 ways, for example, as 5134756 + 4986289 = 2266^2 + 2233^2 .

It is not a de Polignac number, because 10121045 - 210 = 10120021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7760 + ... + 8969.

It is an arithmetic number, because the mean of its divisors is an integer number (1112545).

Almost surely, 210121045 is an apocalyptic number.

It is an amenable number.

10121045 is a deficient number, since it is larger than the sum of its proper divisors (3229495).

10121045 is a wasteful number, since it uses less digits than its factorization.

10121045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16756 (or 16745 counting only the distinct ones).

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

The square root of 10121045 is about 3181.3589863453. The cubic root of 10121045 is about 216.3092634971.

Adding to 10121045 its reverse (54012101), we get a palindrome (64133146).

The spelling of 10121045 in words is "ten million, one hundred twenty-one thousand, forty-five".

Divisors: 1 5 11 55 121 605 16729 83645 184019 920095 2024209 10121045