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537030405 = 3451326001
BaseRepresentation
bin100000000000100…
…110111100000101
31101102111222020000
4200000212330011
52044434433110
6125142231513
716210453212
oct4000467405
91342458200
10537030405
1125615998a
1212ba25599
138734c092
1451474b09
15322301c0
hex20026f05

537030405 has 20 divisors (see below), whose sum is σ = 962677452. Its totient is φ = 286416000.

The previous prime is 537030379. The next prime is 537030437. The reversal of 537030405 is 504030735.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 288116676 + 248913729 = 16974^2 + 15777^2 .

It is not a de Polignac number, because 537030405 - 212 = 537026309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 662596 + ... + 663405.

Almost surely, 2537030405 is an apocalyptic number.

It is an amenable number.

537030405 is a deficient number, since it is larger than the sum of its proper divisors (425647047).

537030405 is a wasteful number, since it uses less digits than its factorization.

537030405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326018 (or 1326009 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 537030405 is about 23173.9164795250. The cubic root of 537030405 is about 812.8298141888.

The spelling of 537030405 in words is "five hundred thirty-seven million, thirty thousand, four hundred five".

Divisors: 1 3 5 9 15 27 45 81 135 405 1326001 3978003 6630005 11934009 19890015 35802027 59670045 107406081 179010135 537030405