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537056669 = 1656132429
BaseRepresentation
bin100000000000101…
…101010110011101
31101102120022020202
4200000231112131
52044441303134
6125142553245
716210622612
oct4000552635
91342508222
10537056669
11256177696
1212ba38825
138735b016
1451480509
1532237d7e
hex2002d59d

537056669 has 4 divisors (see below), whose sum is σ = 537105660. Its totient is φ = 537007680.

The previous prime is 537056633. The next prime is 537056677. The reversal of 537056669 is 966650735.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 966650735 = 5193330147.

It can be written as a sum of positive squares in 2 ways, for example, as 175562500 + 361494169 = 13250^2 + 19013^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-537056669 is a prime.

It is a super-2 number, since 2×5370566692 = 576859731434751122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537056269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347 + ... + 32775.

It is an arithmetic number, because the mean of its divisors is an integer number (134276415).

Almost surely, 2537056669 is an apocalyptic number.

It is an amenable number.

537056669 is a deficient number, since it is larger than the sum of its proper divisors (48991).

537056669 is a wasteful number, since it uses less digits than its factorization.

537056669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48990.

The product of its (nonzero) digits is 1020600, while the sum is 47.

The square root of 537056669 is about 23174.4831441825. The cubic root of 537056669 is about 812.8430647199.

The spelling of 537056669 in words is "five hundred thirty-seven million, fifty-six thousand, six hundred sixty-nine".

Divisors: 1 16561 32429 537056669