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80147511139 = 148753898797
BaseRepresentation
bin100101010100100101…
…0011111011101100011
321122212121200102020111
41022221022133131203
52303120230324024
6100452543152151
75535062414143
oct1125112373543
9248777612214
1080147511139
1130a991a9413
12136492a5657
137733871c07
143c445b6923
15214140aa94
hex12a929f763

80147511139 has 4 divisors (see below), whose sum is σ = 80201411424. Its totient is φ = 80093610856.

The previous prime is 80147511049. The next prime is 80147511179. The reversal of 80147511139 is 93111574108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80147511139 - 219 = 80146986851 is a prime.

It is a super-2 number, since 2×801475111392 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80147511179) 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, 26947912 + ... + 26950885.

It is an arithmetic number, because the mean of its divisors is an integer number (20050352856).

Almost surely, 280147511139 is an apocalyptic number.

80147511139 is a deficient number, since it is larger than the sum of its proper divisors (53900285).

80147511139 is a wasteful number, since it uses less digits than its factorization.

80147511139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53900284.

The product of its (nonzero) digits is 30240, while the sum is 40.

The spelling of 80147511139 in words is "eighty billion, one hundred forty-seven million, five hundred eleven thousand, one hundred thirty-nine".

Divisors: 1 1487 53898797 80147511139