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92989 = 1323311
BaseRepresentation
bin10110101100111101
311201120001
4112230331
510433424
61554301
7535051
oct265475
9151501
1092989
1163956
1245991
1333430
1425c61
151c844
hex16b3d

92989 has 8 divisors (see below), whose sum is σ = 104832. Its totient is φ = 81840.

The previous prime is 92987. The next prime is 92993. The reversal of 92989 is 98929.

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 92989 - 21 = 92987 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92987) 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 7 ways as a sum of consecutive naturals, for example, 144 + ... + 454.

It is an arithmetic number, because the mean of its divisors is an integer number (13104).

292989 is an apocalyptic number.

It is an amenable number.

92989 is a deficient number, since it is larger than the sum of its proper divisors (11843).

92989 is a wasteful number, since it uses less digits than its factorization.

92989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347.

The product of its digits is 11664, while the sum is 37.

The square root of 92989 is about 304.9409778957. The cubic root of 92989 is about 45.3047626107.

Adding to 92989 its product of digits (11664), we get a triangular number (104653 = T457).

It can be divided in two parts, 92 and 989, that added together give a triangular number (1081 = T46).

The spelling of 92989 in words is "ninety-two thousand, nine hundred eighty-nine".

Divisors: 1 13 23 299 311 4043 7153 92989