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1672993 = 71991201
BaseRepresentation
bin110011000011100100001
310010222220201
412120130201
5412013433
655505201
720135350
oct6303441
93128821
101672993
11a42a43
12688201
1346764a
14317997
15230a7d
hex198721

1672993 has 8 divisors (see below), whose sum is σ = 1923200. Its totient is φ = 1425600.

The previous prime is 1672967. The next prime is 1672999. The reversal of 1672993 is 3992761.

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

It is a cyclic number.

It is not a de Polignac number, because 1672993 - 25 = 1672961 is a prime.

It is a d-powerful number, because it can be written as 1 + 62 + 75 + 211 + 93 + 95 + 313 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793 + ... + 1993.

It is an arithmetic number, because the mean of its divisors is an integer number (240400).

21672993 is an apocalyptic number.

It is an amenable number.

1672993 is a deficient number, since it is larger than the sum of its proper divisors (250207).

1672993 is a wasteful number, since it uses less digits than its factorization.

1672993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407.

The product of its digits is 20412, while the sum is 37.

The square root of 1672993 is about 1293.4423064057. The cubic root of 1672993 is about 118.7129346924.

It can be divided in two parts, 167 and 2993, that added together give a triangular number (3160 = T79).

The spelling of 1672993 in words is "one million, six hundred seventy-two thousand, nine hundred ninety-three".

Divisors: 1 7 199 1201 1393 8407 238999 1672993