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537728213 = 1148884383
BaseRepresentation
bin100000000011010…
…001010011010101
31101110211102102202
4200003101103111
52100124300323
6125205214245
716216420511
oct4003212325
91343742382
10537728213
11256596190
12130101385
1387534899
14515b7141
153231bd28
hex200d14d5

537728213 has 4 divisors (see below), whose sum is σ = 586612608. Its totient is φ = 488843820.

The previous prime is 537728209. The next prime is 537728231. The reversal of 537728213 is 312827735.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 537728213 - 22 = 537728209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537728713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24442181 + ... + 24442202.

It is an arithmetic number, because the mean of its divisors is an integer number (146653152).

Almost surely, 2537728213 is an apocalyptic number.

It is an amenable number.

537728213 is a deficient number, since it is larger than the sum of its proper divisors (48884395).

537728213 is a wasteful number, since it uses less digits than its factorization.

537728213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48884394.

The product of its digits is 70560, while the sum is 38.

The square root of 537728213 is about 23188.9674845604. The cubic root of 537728213 is about 813.1817208030.

The spelling of 537728213 in words is "five hundred thirty-seven million, seven hundred twenty-eight thousand, two hundred thirteen".

Divisors: 1 11 48884383 537728213