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1830980 = 225831103
BaseRepresentation
bin110111111000001000100
310110000122002
412333001010
5432042410
6103124432
721364064
oct6770104
93400562
101830980
111040708
12743718
134c1528
143593a4
152627a5
hex1bf044

1830980 has 24 divisors (see below), whose sum is σ = 3894912. Its totient is φ = 722912.

The previous prime is 1830977. The next prime is 1831001. The reversal of 1830980 is 890381.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109 + ... + 2211.

It is an arithmetic number, because the mean of its divisors is an integer number (162288).

21830980 is an apocalyptic number.

1830980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1830980 is an abundant number, since it is smaller than the sum of its proper divisors (2063932).

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

1830980 is a wasteful number, since it uses less digits than its factorization.

1830980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1193 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1830980 is about 1353.1370957889. The cubic root of 1830980 is about 122.3379503801.

The spelling of 1830980 in words is "one million, eight hundred thirty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1103 1660 2206 4412 5515 11030 22060 91549 183098 366196 457745 915490 1830980