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1992849704 = 23249106213
BaseRepresentation
bin111011011001000…
…0111100100101000
312010212220020212022
41312302013210220
513040132142304
6525425404012
7100245641306
oct16662074450
95125806768
101992849704
11932a0352a
12477499608
13259b42911
1414c957276
15b9e4debe
hex76c87928

1992849704 has 8 divisors (see below), whose sum is σ = 3736593210. Its totient is φ = 996424848.

The previous prime is 1992849689. The next prime is 1992849707. The reversal of 1992849704 is 4079482991.

It can be written as a sum of positive squares in only one way, i.e., 1935120100 + 57729604 = 43990^2 + 7598^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1992849707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124553099 + ... + 124553114.

Almost surely, 21992849704 is an apocalyptic number.

It is an amenable number.

1992849704 is a deficient number, since it is larger than the sum of its proper divisors (1743743506).

1992849704 is a wasteful number, since it uses less digits than its factorization.

1992849704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249106219 (or 249106215 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 1992849704 is about 44641.3452306267. The cubic root of 1992849704 is about 1258.4177889350.

The spelling of 1992849704 in words is "one billion, nine hundred ninety-two million, eight hundred forty-nine thousand, seven hundred four".

Divisors: 1 2 4 8 249106213 498212426 996424852 1992849704