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80471877 = 3314320123
BaseRepresentation
bin1001100101111…
…10011101000101
312121102101122220
410302332131011
5131100100002
611552442553
71664666613
oct462763505
9177371586
1080471877
1141473792
1222b49459
13138970c5
14a98a6b3
1570e87bc
hex4cbe745

80471877 has 16 divisors (see below), whose sum is σ = 113338368. Its totient is φ = 50707440.

The previous prime is 80471873. The next prime is 80471887. The reversal of 80471877 is 77817408.

It is not a de Polignac number, because 80471877 - 22 = 80471873 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80471873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6063 + ... + 14060.

It is an arithmetic number, because the mean of its divisors is an integer number (7083648).

Almost surely, 280471877 is an apocalyptic number.

It is an amenable number.

80471877 is a deficient number, since it is larger than the sum of its proper divisors (32866491).

80471877 is a wasteful number, since it uses less digits than its factorization.

80471877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20200.

The product of its (nonzero) digits is 87808, while the sum is 42.

The square root of 80471877 is about 8970.6118520422. The cubic root of 80471877 is about 431.7324678855.

The spelling of 80471877 in words is "eighty million, four hundred seventy-one thousand, eight hundred seventy-seven".

Divisors: 1 3 31 43 93 129 1333 3999 20123 60369 623813 865289 1871439 2595867 26823959 80471877