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42887677686 = 2371969977681
BaseRepresentation
bin100111111100010011…
…100000011011110110
311002200220201202120220
4213330103200123312
51200313221141221
631411411435210
73045540150120
oct477423403366
9132626652526
1042887677686
1117208a81027
12838abb5b06
1340763ca699
14210bcd6210
1511b02900c6
hex9fc4e06f6

42887677686 has 64 divisors (see below), whose sum is σ = 103216581120. Its totient is φ = 11605524480.

The previous prime is 42887677661. The next prime is 42887677699. The reversal of 42887677686 is 68677678824.

It is a self number, because there is not a number n which added to its sum of digits gives 42887677686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5579766 + ... + 5587446.

It is an arithmetic number, because the mean of its divisors is an integer number (1612759080).

Almost surely, 242887677686 is an apocalyptic number.

42887677686 is an abundant number, since it is smaller than the sum of its proper divisors (60328903434).

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

42887677686 is a wasteful number, since it uses less digits than its factorization.

42887677686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14709.

The product of its digits is 303464448, while the sum is 69.

The spelling of 42887677686 in words is "forty-two billion, eight hundred eighty-seven million, six hundred seventy-seven thousand, six hundred eighty-six".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 6997 7681 13994 15362 20991 23043 41982 46086 48979 53767 97958 107534 132943 145939 146937 161301 265886 291878 293874 322602 398829 437817 797658 875634 930601 1021573 1861202 2043146 2791803 3064719 5583606 6129438 53743957 107487914 161231871 322463742 376207699 752415398 1021135183 1128623097 2042270366 2257246194 3063405549 6126811098 7147946281 14295892562 21443838843 42887677686