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80938 = 21113283
BaseRepresentation
bin10011110000101010
311010000201
4103300222
510042223
61422414
7454654
oct236052
9133021
1080938
11558a0
123aa0a
132aac0
14216d4
1518ead
hex13c2a

80938 has 16 divisors (see below), whose sum is σ = 143136. Its totient is φ = 33840.

The previous prime is 80933. The next prime is 80953. The reversal of 80938 is 83908.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (80933) by changing a digit.

80938 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145 + ... + 427.

It is an arithmetic number, because the mean of its divisors is an integer number (8946).

280938 is an apocalyptic number.

80938 is a deficient number, since it is larger than the sum of its proper divisors (62198).

80938 is a wasteful number, since it uses less digits than its factorization.

80938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 80938 is about 284.4960456667. The cubic root of 80938 is about 43.2564448502.

The spelling of 80938 in words is "eighty thousand, nine hundred thirty-eight".

Divisors: 1 2 11 13 22 26 143 283 286 566 3113 3679 6226 7358 40469 80938