Search a number
-
+
76883689 = 312480119
BaseRepresentation
bin1001001010100…
…10011011101001
312100200002121001
410211102123221
5124140234224
611343515001
71622333461
oct445223351
9170602531
1076883689
113a442943
12218b8a61
1312c0bb0c
14a2d4ba1
156b3a544
hex49526e9

76883689 has 4 divisors (see below), whose sum is σ = 79363840. Its totient is φ = 74403540.

The previous prime is 76883663. The next prime is 76883711. The reversal of 76883689 is 98638867.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98638867 = 690714281.

It is a cyclic number.

It is not a de Polignac number, because 76883689 - 217 = 76752617 is a prime.

It is a super-2 number, since 2×768836892 = 11822203268497442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76883489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240029 + ... + 1240090.

It is an arithmetic number, because the mean of its divisors is an integer number (19840960).

Almost surely, 276883689 is an apocalyptic number.

It is an amenable number.

76883689 is a deficient number, since it is larger than the sum of its proper divisors (2480151).

76883689 is a wasteful number, since it uses less digits than its factorization.

76883689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480150.

The product of its digits is 3483648, while the sum is 55.

The square root of 76883689 is about 8768.3344484571. The cubic root of 76883689 is about 425.2177689042.

The spelling of 76883689 in words is "seventy-six million, eight hundred eighty-three thousand, six hundred eighty-nine".

Divisors: 1 31 2480119 76883689