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319813241 = 1129073931
BaseRepresentation
bin10011000011111…
…111011001111001
3211021210012021212
4103003333121321
51123333010431
651422412505
710632240056
oct2303773171
9737705255
10319813241
11154587470
128b131135
1351347207
143069002d
151d12472b
hex130ff679

319813241 has 4 divisors (see below), whose sum is σ = 348887184. Its totient is φ = 290739300.

The previous prime is 319813201. The next prime is 319813253. The reversal of 319813241 is 142318913.

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.

It is a cyclic number.

It is not a de Polignac number, because 319813241 - 214 = 319796857 is a prime.

It is a super-3 number, since 3×3198132413 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 319813198 and 319813207.

It is not an unprimeable number, because it can be changed into a prime (319813201) 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, 14536955 + ... + 14536976.

It is an arithmetic number, because the mean of its divisors is an integer number (87221796).

Almost surely, 2319813241 is an apocalyptic number.

It is an amenable number.

319813241 is a deficient number, since it is larger than the sum of its proper divisors (29073943).

319813241 is a wasteful number, since it uses less digits than its factorization.

319813241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29073942.

The product of its digits is 5184, while the sum is 32.

The square root of 319813241 is about 17883.3229853962. The cubic root of 319813241 is about 683.8572888602.

The spelling of 319813241 in words is "three hundred nineteen million, eight hundred thirteen thousand, two hundred forty-one".

Divisors: 1 11 29073931 319813241