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524490169 = 7210703881
BaseRepresentation
bin11111010000110…
…001010110111001
31100112220212020211
4133100301112321
52033232141134
6124013351121
715666043600
oct3720612671
91315825224
10524490169
1124a074255
121277984a1
138487b218
144d92ca37
15310a4764
hex1f4315b9

524490169 has 6 divisors (see below), whose sum is σ = 610121274. Its totient is φ = 449562960.

The previous prime is 524490167. The next prime is 524490199. The reversal of 524490169 is 961094425.

It can be written as a sum of positive squares in only one way, i.e., 385533225 + 138956944 = 19635^2 + 11788^2 .

It is not a de Polignac number, because 524490169 - 21 = 524490167 is a prime.

It is a super-2 number, since 2×5244901692 = 550179874755297122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (524490167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5351892 + ... + 5351989.

It is an arithmetic number, because the mean of its divisors is an integer number (101686879).

Almost surely, 2524490169 is an apocalyptic number.

It is an amenable number.

524490169 is a deficient number, since it is larger than the sum of its proper divisors (85631105).

524490169 is a wasteful number, since it uses less digits than its factorization.

524490169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10703895 (or 10703888 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 524490169 is about 22901.7503479538. The cubic root of 524490169 is about 806.4531032175.

The spelling of 524490169 in words is "five hundred twenty-four million, four hundred ninety thousand, one hundred sixty-nine".

Divisors: 1 7 49 10703881 74927167 524490169