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987414481 = 1019776381
BaseRepresentation
bin111010110110101…
…011111111010001
32112210222212000201
4322312223333101
54010234230411
6241551415201
733316612264
oct7266537721
92483885021
10987414481
11467408129
12236824501
13129751831
14951d2cdb
155ba473c1
hex3adabfd1

987414481 has 4 divisors (see below), whose sum is σ = 997190964. Its totient is φ = 977638000.

The previous prime is 987414473. The next prime is 987414497. The reversal of 987414481 is 184414789.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 605602881 + 381811600 = 24609^2 + 19540^2 .

It is a cyclic number.

It is not a de Polignac number, because 987414481 - 23 = 987414473 is a prime.

It is a super-2 number, since 2×9874144812 = 1949974714576998722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987414581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4888090 + ... + 4888291.

It is an arithmetic number, because the mean of its divisors is an integer number (249297741).

Almost surely, 2987414481 is an apocalyptic number.

It is an amenable number.

987414481 is a deficient number, since it is larger than the sum of its proper divisors (9776483).

987414481 is a wasteful number, since it uses less digits than its factorization.

987414481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9776482.

The product of its digits is 258048, while the sum is 46.

The square root of 987414481 is about 31423.1519902126. The cubic root of 987414481 is about 995.7871034267.

The spelling of 987414481 in words is "nine hundred eighty-seven million, four hundred fourteen thousand, four hundred eighty-one".

Divisors: 1 101 9776381 987414481