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1930884 = 223160907
BaseRepresentation
bin111010111011010000100
310122002200020
413113122010
5443242014
6105215140
722261254
oct7273204
93562606
101930884
1110a977a
127914b0
13527b47
14383964
152821a9
hex1d7684

1930884 has 12 divisors (see below), whose sum is σ = 4505424. Its totient is φ = 643624.

The previous prime is 1930883. The next prime is 1930927. The reversal of 1930884 is 4880391.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1930883) 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 3 ways as a sum of consecutive naturals, for example, 80442 + ... + 80465.

It is an arithmetic number, because the mean of its divisors is an integer number (375452).

21930884 is an apocalyptic number.

It is an amenable number.

1930884 is an abundant number, since it is smaller than the sum of its proper divisors (2574540).

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

1930884 is a wasteful number, since it uses less digits than its factorization.

1930884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160914 (or 160912 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1930884 is about 1389.5625210835. The cubic root of 1930884 is about 124.5237128427.

It can be divided in two parts, 19 and 30884, that added together give a palindrome (30903).

The spelling of 1930884 in words is "one million, nine hundred thirty thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 160907 321814 482721 643628 965442 1930884