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537494161 = 18125111831
BaseRepresentation
bin100000000010011…
…000001010010001
31101110101112101011
4200002120022101
52100044303121
6125200210521
716214424241
oct4002301221
91343345334
10537494161
11256446356
12130009a41
13874821a9
1451555b21
15322c27e1
hex20098291

537494161 has 8 divisors (see below), whose sum is σ = 542662848. Its totient is φ = 532350000.

The previous prime is 537494159. The next prime is 537494183. The reversal of 537494161 is 161494735.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 537494161 - 21 = 537494159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537494131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39516 + ... + 51346.

It is an arithmetic number, because the mean of its divisors is an integer number (67832856).

Almost surely, 2537494161 is an apocalyptic number.

It is an amenable number.

537494161 is a deficient number, since it is larger than the sum of its proper divisors (5168687).

537494161 is a wasteful number, since it uses less digits than its factorization.

537494161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12263.

The product of its digits is 90720, while the sum is 40.

The square root of 537494161 is about 23183.9203112847. The cubic root of 537494161 is about 813.0637216452.

The spelling of 537494161 in words is "five hundred thirty-seven million, four hundred ninety-four thousand, one hundred sixty-one".

Divisors: 1 181 251 11831 45431 2141411 2969581 537494161