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1962081 = 321119819
BaseRepresentation
bin111011111000001100001
310200200110200
413133001201
51000241311
6110015413
722451232
oct7370141
93620420
101962081
111120160
127a7569
135390c4
14391089
1528b556
hex1df061

1962081 has 12 divisors (see below), whose sum is σ = 3091920. Its totient is φ = 1189080.

The previous prime is 1962071. The next prime is 1962091. The reversal of 1962081 is 1802691.

It is an interprime number because it is at equal distance from previous prime (1962071) and next prime (1962091).

It is not a de Polignac number, because 1962081 - 25 = 1962049 is a prime.

It is a super-2 number, since 2×19620812 = 7699523701122, which contains 22 as substring.

It is a Curzon number.

1962081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1962001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9811 + ... + 10008.

It is an arithmetic number, because the mean of its divisors is an integer number (257660).

21962081 is an apocalyptic number.

1962081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1962081 is a deficient number, since it is larger than the sum of its proper divisors (1129839).

1962081 is a wasteful number, since it uses less digits than its factorization.

1962081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19836 (or 19833 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1962081 is about 1400.7430171163. The cubic root of 1962081 is about 125.1907700396.

It can be divided in two parts, 19620 and 81, that added together give a triangular number (19701 = T198).

The spelling of 1962081 in words is "one million, nine hundred sixty-two thousand, eighty-one".

Divisors: 1 3 9 11 33 99 19819 59457 178371 218009 654027 1962081