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1284355092 = 223107029591
BaseRepresentation
bin100110010001101…
…1011010000010100
310022111201222222010
41030203123100110
510112243330332
6331240104220
743553560326
oct11443332024
93274658863
101284355092
115a9a91a99
122ba165070
1317611ac37
14c280b616
1577b4e9cc
hex4c8db414

1284355092 has 12 divisors (see below), whose sum is σ = 2996828576. Its totient is φ = 428118360.

The previous prime is 1284355081. The next prime is 1284355147. The reversal of 1284355092 is 2905534821.

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

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1284355092.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53514784 + ... + 53514807.

Almost surely, 21284355092 is an apocalyptic number.

1284355092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1284355092 is an abundant number, since it is smaller than the sum of its proper divisors (1712473484).

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

1284355092 is a wasteful number, since it uses less digits than its factorization.

1284355092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107029598 (or 107029596 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1284355092 is about 35837.9002175072. The cubic root of 1284355092 is about 1086.9970629369.

The spelling of 1284355092 in words is "one billion, two hundred eighty-four million, three hundred fifty-five thousand, ninety-two".

Divisors: 1 2 3 4 6 12 107029591 214059182 321088773 428118364 642177546 1284355092