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6841980 = 2232538011
BaseRepresentation
bin11010000110011001111100
3110212121102200
4122012121330
53222420410
6402351500
7112104315
oct32063174
913777380
106841980
113953532
12235b590
131557312
14ca160c
159023c0
hex68667c

6841980 has 36 divisors (see below), whose sum is σ = 20754552. Its totient is φ = 1824480.

The previous prime is 6841963. The next prime is 6841987. The reversal of 6841980 is 891486.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6841987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18826 + ... + 19185.

Almost surely, 26841980 is an apocalyptic number.

6841980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6841980 is an abundant number, since it is smaller than the sum of its proper divisors (13912572).

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

6841980 is a wasteful number, since it uses less digits than its factorization.

6841980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38026 (or 38021 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 6841980 is about 2615.7178746952. The cubic root of 6841980 is about 189.8427137829.

The spelling of 6841980 in words is "six million, eight hundred forty-one thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 38011 76022 114033 152044 190055 228066 342099 380110 456132 570165 684198 760220 1140330 1368396 1710495 2280660 3420990 6841980