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42711977 = 7211109727
BaseRepresentation
bin1010001011101…
…1101110101001
32222100222211002
42202323232221
541413240402
64123244345
71026021500
oct242735651
988328732
1042711977
1122123160
12123796b5
138b06079
14595b837
153b3a602
hex28bbba9

42711977 has 24 divisors (see below), whose sum is σ = 54774720. Its totient is φ = 32931360.

The previous prime is 42711959. The next prime is 42712003. The reversal of 42711977 is 77911724.

It is not a de Polignac number, because 42711977 - 214 = 42695593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42711977.

It is not an unprimeable number, because it can be changed into a prime (42711947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58388 + ... + 59114.

It is an arithmetic number, because the mean of its divisors is an integer number (2282280).

Almost surely, 242711977 is an apocalyptic number.

It is an amenable number.

42711977 is a deficient number, since it is larger than the sum of its proper divisors (12062743).

42711977 is a wasteful number, since it uses less digits than its factorization.

42711977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 854 counting only the distinct ones).

The product of its digits is 24696, while the sum is 38.

The square root of 42711977 is about 6535.4400769956. The cubic root of 42711977 is about 349.5558365780. Note that the first 3 decimals are identical.

The spelling of 42711977 in words is "forty-two million, seven hundred eleven thousand, nine hundred seventy-seven".