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538020837 = 32179337991
BaseRepresentation
bin100000000100011…
…000101111100101
31101111101021211200
4200010120233211
52100213131322
6125215353113
716222046604
oct4004305745
91344337750
10538020837
11256776022
12130222799
1387607b33
1451651a3b
15323788ac
hex20118be5

538020837 has 24 divisors (see below), whose sum is σ = 784592640. Its totient is φ = 355259520.

The previous prime is 538020829. The next prime is 538020851. The reversal of 538020837 is 738020835.

It is not a de Polignac number, because 538020837 - 23 = 538020829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538020827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542412 + ... + 543402.

It is an arithmetic number, because the mean of its divisors is an integer number (32691360).

Almost surely, 2538020837 is an apocalyptic number.

It is an amenable number.

538020837 is a deficient number, since it is larger than the sum of its proper divisors (246571803).

538020837 is a wasteful number, since it uses less digits than its factorization.

538020837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513 (or 1510 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 538020837 is about 23195.2761785670. The cubic root of 538020837 is about 813.3292013399.

The spelling of 538020837 in words is "five hundred thirty-eight million, twenty thousand, eight hundred thirty-seven".

Divisors: 1 3 9 179 337 537 991 1011 1611 2973 3033 8919 60323 177389 180969 333967 532167 542907 1001901 1596501 3005703 59780093 179340279 538020837