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538450960 = 2456730637
BaseRepresentation
bin100000000110000…
…001110000010000
31101112012010212011
4200012001300100
52100320412320
6125232512304
716225520605
oct4006016020
91345163764
10538450960
11256a3a1a3
121303ab694
1387728848
14517246ac
153241105a
hex20181c10

538450960 has 20 divisors (see below), whose sum is σ = 1251898668. Its totient is φ = 215380352.

The previous prime is 538450951. The next prime is 538450961. The reversal of 538450960 is 69054835.

It can be written as a sum of positive squares in 2 ways, for example, as 277822224 + 260628736 = 16668^2 + 16144^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (538450961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3365239 + ... + 3365398.

Almost surely, 2538450960 is an apocalyptic number.

It is an amenable number.

538450960 is an abundant number, since it is smaller than the sum of its proper divisors (713447708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

538450960 is a wasteful number, since it uses less digits than its factorization.

538450960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6730650 (or 6730644 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 538450960 is about 23204.5461063129. The cubic root of 538450960 is about 813.5458834140.

The spelling of 538450960 in words is "five hundred thirty-eight million, four hundred fifty thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 6730637 13461274 26922548 33653185 53845096 67306370 107690192 134612740 269225480 538450960