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538191084 = 22344849257
BaseRepresentation
bin100000000101000…
…010010011101100
31101111200221101010
4200011002103230
52100234103314
6125223145220
716223356134
oct4005022354
91344627333
10538191084
11256881a22
121302a5210
1387667482
1451697ac4
15323ae059
hex201424ec

538191084 has 12 divisors (see below), whose sum is σ = 1255779224. Its totient is φ = 179397024.

The previous prime is 538191079. The next prime is 538191107. The reversal of 538191084 is 480191835.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22424617 + ... + 22424640.

Almost surely, 2538191084 is an apocalyptic number.

It is an amenable number.

538191084 is an abundant number, since it is smaller than the sum of its proper divisors (717588140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

538191084 is a wasteful number, since it uses less digits than its factorization.

538191084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44849264 (or 44849262 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 538191084 is about 23198.9457519086. The cubic root of 538191084 is about 813.4149800833.

The spelling of 538191084 in words is "five hundred thirty-eight million, one hundred ninety-one thousand, eighty-four".

Divisors: 1 2 3 4 6 12 44849257 89698514 134547771 179397028 269095542 538191084