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1993006 = 24991997
BaseRepresentation
bin111100110100100101110
310202020220001
413212210232
51002234011
6110414514
722640341
oct7464456
93666801
101993006
111141414
1280143a
1354a1c2
1439c458
152957c1
hex1e692e

1993006 has 8 divisors (see below), whose sum is σ = 2997000. Its totient is φ = 994008.

The previous prime is 1992983. The next prime is 1993031. The reversal of 1993006 is 6003991.

It is a happy number.

1993006 is a nontrivial binomial coefficient, being equal to C(1997, 2).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 1996.

It is an arithmetic number, because the mean of its divisors is an integer number (374625).

21993006 is an apocalyptic number.

1993006 is the 1996-th triangular number.

1993006 is the 666-th centered nonagonal number.

1993006 is a deficient number, since it is larger than the sum of its proper divisors (1003994).

1993006 is a wasteful number, since it uses less digits than its factorization.

1993006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 1993006 is about 1411.7386443673. The cubic root of 1993006 is about 125.8450686637.

Adding to 1993006 its reverse (6003991), we get a palindrome (7996997).

It can be divided in two parts, 19 and 93006, that added together give a square (93025 = 3052).

The spelling of 1993006 in words is "one million, nine hundred ninety-three thousand, six".

Divisors: 1 2 499 998 1997 3994 996503 1993006