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8981429 = 71126499
BaseRepresentation
bin100010010000…
…101110110101
3121220022012112
4202100232311
54244401204
6520300405
7136224632
oct42205665
917808175
108981429
115084976
123011705
131b26072
14129b189
15bc626e
hex890bb5

8981429 has 4 divisors (see below), whose sum is σ = 9108000. Its totient is φ = 8854860.

The previous prime is 8981411. The next prime is 8981437. The reversal of 8981429 is 9241898.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8981429 - 212 = 8977333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8981459) 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 3 ways as a sum of consecutive naturals, for example, 63179 + ... + 63320.

It is an arithmetic number, because the mean of its divisors is an integer number (2277000).

Almost surely, 28981429 is an apocalyptic number.

It is an amenable number.

8981429 is a deficient number, since it is larger than the sum of its proper divisors (126571).

8981429 is a wasteful number, since it uses less digits than its factorization.

8981429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126570.

The product of its digits is 41472, while the sum is 41.

The square root of 8981429 is about 2996.9032350078. The cubic root of 8981429 is about 207.8652125387.

It can be divided in two parts, 89 and 81429, that added together give a palindrome (81518).

The spelling of 8981429 in words is "eight million, nine hundred eighty-one thousand, four hundred twenty-nine".

Divisors: 1 71 126499 8981429