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80018269263 = 3215158880257
BaseRepresentation
bin100101010000101110…
…1011110010001001111
321122112121111020201100
41022201131132101033
52302334134104023
6100432045114143
75531633031522
oct1124135362117
9248477436640
1080018269263
1130a32255049
1213611b58953
137712b6052a
143c31372bb9
152134dcbc43
hex12a175e44f

80018269263 has 12 divisors (see below), whose sum is σ = 116347389808. Its totient is φ = 52992230400.

The previous prime is 80018269241. The next prime is 80018269277. The reversal of 80018269263 is 36296281008.

It is not a de Polignac number, because 80018269263 - 25 = 80018269231 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 (80018269213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29438770 + ... + 29441487.

Almost surely, 280018269263 is an apocalyptic number.

80018269263 is a deficient number, since it is larger than the sum of its proper divisors (36329120545).

80018269263 is a wasteful number, since it uses less digits than its factorization.

80018269263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58880414 (or 58880411 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

It can be divided in two parts, 80018 and 269263, that added together give a square (349281 = 5912).

The spelling of 80018269263 in words is "eighty billion, eighteen million, two hundred sixty-nine thousand, two hundred sixty-three".

Divisors: 1 3 9 151 453 1359 58880257 176640771 529922313 8890918807 26672756421 80018269263