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1768136412 = 223721049243
BaseRepresentation
bin110100101100011…
…1001111011011100
311120020001122011210
41221120321323130
512110120331122
6451241144420
761546624440
oct15130717334
94506048153
101768136412
11828081069
1241418b110
13222414a83
1412ab80820
15a536240c
hex69639edc

1768136412 has 24 divisors (see below), whose sum is σ = 4715030656. Its totient is φ = 505181808.

The previous prime is 1768136399. The next prime is 1768136437. The reversal of 1768136412 is 2146318671.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10524538 + ... + 10524705.

Almost surely, 21768136412 is an apocalyptic number.

1768136412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1768136412 is an abundant number, since it is smaller than the sum of its proper divisors (2946894244).

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

1768136412 is a wasteful number, since it uses less digits than its factorization.

1768136412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21049257 (or 21049255 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 1768136412 is about 42049.2141662600. The cubic root of 1768136412 is about 1209.2198171681.

The spelling of 1768136412 in words is "one billion, seven hundred sixty-eight million, one hundred thirty-six thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 21049243 42098486 63147729 84196972 126295458 147344701 252590916 294689402 442034103 589378804 884068206 1768136412