Search a number
-
+
76989250 = 2531323689
BaseRepresentation
bin1001001011011…
…00001101000010
312100212110101201
410211230031002
5124202124000
611350051414
71623253312
oct445541502
9170773351
1076989250
113a505188
1221949b6a
1312c47b90
14a321442
156b5b96a
hex496c342

76989250 has 32 divisors (see below), whose sum is σ = 155216880. Its totient is φ = 28425600.

The previous prime is 76989247. The next prime is 76989251. The reversal of 76989250 is 5298967.

It can be written as a sum of positive squares in 8 ways, for example, as 8082649 + 68906601 = 2843^2 + 8301^2 .

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 76989250.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76989251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8595 + ... + 15094.

Almost surely, 276989250 is an apocalyptic number.

76989250 is an abundant number, since it is smaller than the sum of its proper divisors (78227630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76989250 is a wasteful number, since it uses less digits than its factorization.

76989250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23719 (or 23709 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 76989250 is about 8774.3518279130. The cubic root of 76989250 is about 425.4122873436.

The spelling of 76989250 in words is "seventy-six million, nine hundred eighty-nine thousand, two hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 125 130 250 325 650 1625 3250 23689 47378 118445 236890 307957 592225 615914 1184450 1539785 2961125 3079570 5922250 7698925 15397850 38494625 76989250