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84101481 = 3231378147
BaseRepresentation
bin1010000001101…
…00100101101001
312212020210112200
411000310211221
5133012221411
612202330413
72040564552
oct500644551
9185223480
1084101481
1143522762
12241b9a09
13145681b9
14b253329
1575b3e56
hex5034969

84101481 has 24 divisors (see below), whose sum is σ = 128803584. Its totient is φ = 52786080.

The previous prime is 84101453. The next prime is 84101489. The reversal of 84101481 is 18410148.

84101481 is a `hidden beast` number, since 84 + 101 + 481 = 666.

It is not a de Polignac number, because 84101481 - 25 = 84101449 is a prime.

It is a super-2 number, since 2×841014812 = 14146118212786722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84101489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6250 + ... + 14396.

It is an arithmetic number, because the mean of its divisors is an integer number (5366816).

Almost surely, 284101481 is an apocalyptic number.

It is an amenable number.

84101481 is a deficient number, since it is larger than the sum of its proper divisors (44702103).

84101481 is a wasteful number, since it uses less digits than its factorization.

84101481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8221 (or 8218 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 84101481 is about 9170.6859612572. The cubic root of 84101481 is about 438.1282072926.

The spelling of 84101481 in words is "eighty-four million, one hundred one thousand, four hundred eighty-one".

Divisors: 1 3 9 31 37 93 111 279 333 1147 3441 8147 10323 24441 73323 252557 301439 757671 904317 2273013 2712951 9344609 28033827 84101481