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83808308980 = 22511661576319
BaseRepresentation
bin100111000001101011…
…1010100111011110100
322000022202010012210201
41032003113110323310
52333114411341410
6102300114530244
76024563605144
oct1160327247364
9260282105721
1083808308980
11325a7672a80
12142ab296984
137b9811b196
1440b0870924
1522a79cb83a
hex13835d4ef4

83808308980 has 48 divisors (see below), whose sum is σ = 192288015360. Its totient is φ = 30429590400.

The previous prime is 83808308957. The next prime is 83808309083. The reversal of 83808308980 is 8980380838.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142740 + ... + 433579.

It is an arithmetic number, because the mean of its divisors is an integer number (4006000320).

Almost surely, 283808308980 is an apocalyptic number.

It is an amenable number.

83808308980 is an abundant number, since it is smaller than the sum of its proper divisors (108479706380).

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

83808308980 is a wasteful number, since it uses less digits than its factorization.

83808308980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577000 (or 576998 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 55.

The spelling of 83808308980 in words is "eighty-three billion, eight hundred eight million, three hundred eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 661 1322 2644 3305 6610 7271 13220 14542 29084 36355 72710 145420 576319 1152638 2305276 2881595 5763190 6339509 11526380 12679018 25358036 31697545 63395090 126790180 380946859 761893718 1523787436 1904734295 3809468590 4190415449 7618937180 8380830898 16761661796 20952077245 41904154490 83808308980