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8948138871 = 372318772239
BaseRepresentation
bin10000101010101100…
…11100001101110111
3212002121111112220210
420111112130031313
5121311210420441
64035525400503
7434512632300
oct102526341567
925077445823
108948138871
113881a9a1a1
121898869133
13ac7ac2a39
1460c5957a7
15375885616
hex21559c377

8948138871 has 48 divisors (see below), whose sum is σ = 14349189120. Its totient is φ = 4940429760.

The previous prime is 8948138831. The next prime is 8948138893. The reversal of 8948138871 is 1788318498.

It is not a de Polignac number, because 8948138871 - 27 = 8948138743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8948138831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3995370 + ... + 3997608.

It is an arithmetic number, because the mean of its divisors is an integer number (298941440).

Almost surely, 28948138871 is an apocalyptic number.

8948138871 is a deficient number, since it is larger than the sum of its proper divisors (5401050249).

8948138871 is a wasteful number, since it uses less digits than its factorization.

8948138871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164 (or 3157 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 57.

The square root of 8948138871 is about 94594.6027582969. The cubic root of 8948138871 is about 2076.0807353951.

The spelling of 8948138871 in words is "eight billion, nine hundred forty-eight million, one hundred thirty-eight thousand, eight hundred seventy-one".

Divisors: 1 3 7 21 31 49 93 147 217 651 877 1519 2239 2631 4557 6139 6717 15673 18417 27187 42973 47019 69409 81561 109711 128919 190309 208227 329133 485863 570927 1332163 1457589 1963603 3401041 3996489 5890809 10203123 13745221 41235663 60871693 96216547 182615079 288649641 426101851 1278305553 2982712957 8948138871