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1284841342 = 21261950909
BaseRepresentation
bin100110010010101…
…0001111101111110
310022112122200222101
41030211101331332
510112404410332
6331254335314
743560654061
oct11445217576
93275580871
101284841342
115aa294354
122ba35a53a
1317625b365
14c28d68d8
1577be8ae7
hex4c951f7e

1284841342 has 8 divisors (see below), whose sum is σ = 1927452600. Its totient is φ = 642357144.

The previous prime is 1284841331. The next prime is 1284841343. The reversal of 1284841342 is 2431484821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12848413422 = 3301634548224721928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284841343) 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, 217 + ... + 50692.

It is an arithmetic number, because the mean of its divisors is an integer number (240931575).

Almost surely, 21284841342 is an apocalyptic number.

1284841342 is a deficient number, since it is larger than the sum of its proper divisors (642611258).

1284841342 is a wasteful number, since it uses less digits than its factorization.

1284841342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63530.

The product of its digits is 49152, while the sum is 37.

The square root of 1284841342 is about 35844.6835946420. The cubic root of 1284841342 is about 1087.1342227293.

The spelling of 1284841342 in words is "one billion, two hundred eighty-four million, eight hundred forty-one thousand, three hundred forty-two".

Divisors: 1 2 12619 25238 50909 101818 642420671 1284841342