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9120501 = 3213137569
BaseRepresentation
bin100010110010…
…101011110101
3122011100222100
4202302223311
54313324001
6523252313
7140344245
oct42625365
918140870
109120501
11516a405
12307a099
131b74460
1412d5b25
15c02586
hex8b2af5

9120501 has 24 divisors (see below), whose sum is σ = 14316120. Its totient is φ = 5561856.

The previous prime is 9120497. The next prime is 9120511. The reversal of 9120501 is 1050219.

9120501 is digitally balanced in base 3, 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 4 ways, for example, as 30276 + 9090225 = 174^2 + 3015^2 .

It is not a de Polignac number, because 9120501 - 22 = 9120497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9120511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15745 + ... + 16313.

It is an arithmetic number, because the mean of its divisors is an integer number (596505).

Almost surely, 29120501 is an apocalyptic number.

9120501 is the 2466-th pentagonal number.

It is an amenable number.

9120501 is a deficient number, since it is larger than the sum of its proper divisors (5195619).

9120501 is a wasteful number, since it uses less digits than its factorization.

9120501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 9120501 is about 3020.0167218080. The cubic root of 9120501 is about 208.9326110737.

The spelling of 9120501 in words is "nine million, one hundred twenty thousand, five hundred one".

Divisors: 1 3 9 13 39 117 137 411 569 1233 1707 1781 5121 5343 7397 16029 22191 66573 77953 233859 701577 1013389 3040167 9120501