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1299042 = 23272169
BaseRepresentation
bin100111101001001100010
32102222221200
410331021202
5313032132
643502030
714020203
oct4751142
92388850
101299042
11807a98
12527916
13366384
1425b5aa
151a9d7c
hex13d262

1299042 has 12 divisors (see below), whose sum is σ = 2814630. Its totient is φ = 433008.

The previous prime is 1299041. The next prime is 1299059. The reversal of 1299042 is 2409921.

It can be written as a sum of positive squares in only one way, i.e., 1279161 + 19881 = 1131^2 + 141^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1298997 and 1299015.

It is not an unprimeable number, because it can be changed into a prime (1299041) 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, 36067 + ... + 36102.

21299042 is an apocalyptic number.

1299042 is an abundant number, since it is smaller than the sum of its proper divisors (1515588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1299042 is a wasteful number, since it uses less digits than its factorization.

1299042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72177 (or 72174 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1299042 is about 1139.7552368820. The cubic root of 1299042 is about 109.1124726313.

The spelling of 1299042 in words is "one million, two hundred ninety-nine thousand, forty-two".

Divisors: 1 2 3 6 9 18 72169 144338 216507 433014 649521 1299042