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319149 = 3235461
BaseRepresentation
bin1001101111010101101
3121012210100
41031322231
540203044
610501313
72466315
oct1157255
9535710
10319149
111a8866
12134839
13b235c
1484445
1564869
hex4dead

319149 has 6 divisors (see below), whose sum is σ = 461006. Its totient is φ = 212760.

The previous prime is 319147. The next prime is 319159. The reversal of 319149 is 941913.

It can be written as a sum of positive squares in only one way, i.e., 260100 + 59049 = 510^2 + 243^2 .

It is not a de Polignac number, because 319149 - 21 = 319147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17722 + ... + 17739.

2319149 is an apocalyptic number.

It is an amenable number.

319149 is a deficient number, since it is larger than the sum of its proper divisors (141857).

319149 is a wasteful number, since it uses less digits than its factorization.

319149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35467 (or 35464 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 319149 is about 564.9327393593. The cubic root of 319149 is about 68.3383511419.

It can be divided in two parts, 3191 and 49, that added together give a triangular number (3240 = T80).

The spelling of 319149 in words is "three hundred nineteen thousand, one hundred forty-nine".

Divisors: 1 3 9 35461 106383 319149