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97949 = 412389
BaseRepresentation
bin10111111010011101
311222100202
4113322131
511113244
62033245
7555365
oct277235
9158322
1097949
1167655
1248825
1335777
14279a5
151e04e
hex17e9d

97949 has 4 divisors (see below), whose sum is σ = 100380. Its totient is φ = 95520.

The previous prime is 97943. The next prime is 97961. The reversal of 97949 is 94979.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12100 + 85849 = 110^2 + 293^2 .

It is a cyclic number.

It is not a de Polignac number, because 97949 - 216 = 32413 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97943) 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, 1154 + ... + 1235.

It is an arithmetic number, because the mean of its divisors is an integer number (25095).

297949 is an apocalyptic number.

It is an amenable number.

97949 is a deficient number, since it is larger than the sum of its proper divisors (2431).

97949 is a wasteful number, since it uses less digits than its factorization.

97949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430.

The product of its digits is 20412, while the sum is 38.

The square root of 97949 is about 312.9680494875. The cubic root of 97949 is about 46.0963638372.

The spelling of 97949 in words is "ninety-seven thousand, nine hundred forty-nine".

Divisors: 1 41 2389 97949