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94981 = 194999
BaseRepresentation
bin10111001100000101
311211021211
4113030011
511014411
62011421
7543625
oct271405
9154254
1094981
11653a7
1246b71
1334303
1426885
151d221
hex17305

94981 has 4 divisors (see below), whose sum is σ = 100000. Its totient is φ = 89964.

The previous prime is 94961. The next prime is 94993. The reversal of 94981 is 18949.

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: 18949 = 72707.

It is a cyclic number.

It is not a de Polignac number, because 94981 - 25 = 94949 is a prime.

It is a super-2 number, since 2×949812 = 18042780722, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2481 + ... + 2518.

It is an arithmetic number, because the mean of its divisors is an integer number (25000).

294981 is an apocalyptic number.

It is an amenable number.

94981 is a deficient number, since it is larger than the sum of its proper divisors (5019).

94981 is a wasteful number, since it uses less digits than its factorization.

94981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018.

The product of its digits is 2592, while the sum is 31.

The square root of 94981 is about 308.1898765372. The cubic root of 94981 is about 45.6259842160.

The spelling of 94981 in words is "ninety-four thousand, nine hundred eighty-one".

Divisors: 1 19 4999 94981