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1889914 = 21372689
BaseRepresentation
bin111001101011001111010
310120000110211
413031121322
5440434124
6104301334
722030645
oct7153172
93500424
101889914
111080a14
1277184a
135122c0
14372a5c
15274e94
hex1cd67a

1889914 has 8 divisors (see below), whose sum is σ = 3052980. Its totient is φ = 872256.

The previous prime is 1889831. The next prime is 1889957. The reversal of 1889914 is 4199881.

It can be written as a sum of positive squares in 2 ways, for example, as 1550025 + 339889 = 1245^2 + 583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36319 + ... + 36370.

21889914 is an apocalyptic number.

1889914 is a deficient number, since it is larger than the sum of its proper divisors (1163066).

1889914 is a wasteful number, since it uses less digits than its factorization.

1889914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72704.

The product of its digits is 20736, while the sum is 40.

The square root of 1889914 is about 1374.7414302333. The cubic root of 1889914 is about 123.6366836720.

The spelling of 1889914 in words is "one million, eight hundred eighty-nine thousand, nine hundred fourteen".

Divisors: 1 2 13 26 72689 145378 944957 1889914