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1996769 = 17731609
BaseRepresentation
bin111100111011111100001
310202110001102
413213133201
51002344034
6110444145
722654325
oct7473741
93673042
101996769
111144225
12803655
1354bb28
1439d985
1529697e
hex1e77e1

1996769 has 8 divisors (see below), whose sum is σ = 2144520. Its totient is φ = 1852416.

The previous prime is 1996763. The next prime is 1996777. The reversal of 1996769 is 9676991.

It is a happy number.

1996769 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 4 ways, for example, as 1210000 + 786769 = 1100^2 + 887^2 .

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 1996769 - 212 = 1992673 is a prime.

It is a super-2 number, since 2×19967692 = 7974172878722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1996763) 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, 437 + ... + 2045.

It is an arithmetic number, because the mean of its divisors is an integer number (268065).

21996769 is an apocalyptic number.

It is an amenable number.

1996769 is a deficient number, since it is larger than the sum of its proper divisors (147751).

1996769 is a wasteful number, since it uses less digits than its factorization.

1996769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699.

The product of its digits is 183708, while the sum is 47.

The square root of 1996769 is about 1413.0707696361. The cubic root of 1996769 is about 125.9242216727.

The spelling of 1996769 in words is "one million, nine hundred ninety-six thousand, seven hundred sixty-nine".

Divisors: 1 17 73 1241 1609 27353 117457 1996769