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1671423 = 313172521
BaseRepresentation
bin110011000000011111111
310010220202120
412120003333
5411441143
655454023
720130645
oct6300377
93126676
101671423
11a41846
12687313
13466a10
14317195
15230383
hex1980ff

1671423 has 16 divisors (see below), whose sum is σ = 2542176. Its totient is φ = 967680.

The previous prime is 1671421. The next prime is 1671431. The reversal of 1671423 is 3241761.

It is not a de Polignac number, because 1671423 - 21 = 1671421 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1671393 and 1671402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598 + ... + 1923.

It is an arithmetic number, because the mean of its divisors is an integer number (158886).

21671423 is an apocalyptic number.

1671423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1671423 is a deficient number, since it is larger than the sum of its proper divisors (870753).

1671423 is a wasteful number, since it uses less digits than its factorization.

1671423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554.

The product of its digits is 1008, while the sum is 24.

The square root of 1671423 is about 1292.8352563262. The cubic root of 1671423 is about 118.6757881653.

The spelling of 1671423 in words is "one million, six hundred seventy-one thousand, four hundred twenty-three".

Divisors: 1 3 13 17 39 51 221 663 2521 7563 32773 42857 98319 128571 557141 1671423