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103879780 = 2255193989
BaseRepresentation
bin1100011000100…
…01010001100100
321020110122021021
412030101101210
5203043123110
614150300524
72400651334
oct614212144
9236418237
10103879780
1153701464
122a957744
13186a1734
14db210c4
1591be2da
hex6311464

103879780 has 12 divisors (see below), whose sum is σ = 218147580. Its totient is φ = 41551904.

The previous prime is 103879771. The next prime is 103879801. The reversal of 103879780 is 87978301.

It can be written as a sum of positive squares in 2 ways, for example, as 36869184 + 67010596 = 6072^2 + 8186^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2596975 + ... + 2597014.

It is an arithmetic number, because the mean of its divisors is an integer number (18178965).

Almost surely, 2103879780 is an apocalyptic number.

103879780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103879780 is an abundant number, since it is smaller than the sum of its proper divisors (114267800).

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

103879780 is a wasteful number, since it uses less digits than its factorization.

103879780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193998 (or 5193996 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 103879780 is about 10192.1430523713. The cubic root of 103879780 is about 470.0856641803.

The spelling of 103879780 in words is "one hundred three million, eight hundred seventy-nine thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 5193989 10387978 20775956 25969945 51939890 103879780