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1284684348 = 223107057029
BaseRepresentation
bin100110010010010…
…1011101000111100
310022112100201121210
41030210223220330
510112334344343
6331251124420
743556431263
oct11444535074
93275321553
101284684348
115aa197402
122ba2a3710
13176204a6c
14c28955da
1577bb7333
hex4c92ba3c

1284684348 has 12 divisors (see below), whose sum is σ = 2997596840. Its totient is φ = 428228112.

The previous prime is 1284684341. The next prime is 1284684391. The reversal of 1284684348 is 8434864821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1284684297 and 1284684306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284684341) 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, 53528503 + ... + 53528526.

Almost surely, 21284684348 is an apocalyptic number.

It is an amenable number.

1284684348 is an abundant number, since it is smaller than the sum of its proper divisors (1712912492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1284684348 is a wasteful number, since it uses less digits than its factorization.

1284684348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107057036 (or 107057034 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 48.

The square root of 1284684348 is about 35842.4936074487. The cubic root of 1284684348 is about 1087.0899421642.

The spelling of 1284684348 in words is "one billion, two hundred eighty-four million, six hundred eighty-four thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 107057029 214114058 321171087 428228116 642342174 1284684348