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84730481 = 11193710957
BaseRepresentation
bin1010000110011…
…10001001110001
312220102202100222
411003032021301
5133142333411
612224022425
72046124433
oct503161161
9186382328
1084730481
11439122a0
1224461a15
13147285a4
14b378653
15768a4db
hex50ce271

84730481 has 16 divisors (see below), whose sum is σ = 99936960. Its totient is φ = 70994880.

The previous prime is 84730469. The next prime is 84730487. The reversal of 84730481 is 18403748.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-84730481 is a prime.

It is a super-2 number, since 2×847304812 = 14358508820982722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84730487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2255 + ... + 13211.

It is an arithmetic number, because the mean of its divisors is an integer number (6246060).

Almost surely, 284730481 is an apocalyptic number.

It is an amenable number.

84730481 is a deficient number, since it is larger than the sum of its proper divisors (15206479).

84730481 is a wasteful number, since it uses less digits than its factorization.

84730481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11024.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 84730481 is about 9204.9161321546. The cubic root of 84730481 is about 439.2177578633.

The spelling of 84730481 in words is "eighty-four million, seven hundred thirty thousand, four hundred eighty-one".

Divisors: 1 11 19 37 209 407 703 7733 10957 120527 208183 405409 2290013 4459499 7702771 84730481