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1298413 = 592373
BaseRepresentation
bin100111100111111101101
32102222002101
410330333231
5313022123
643455101
714015314
oct4747755
92388071
101298413
11807576
12527491
13365cbc
1425b27b
151a9aad
hex13cfed

1298413 has 6 divisors (see below), whose sum is σ = 1324334. Its totient is φ = 1272984.

The previous prime is 1298387. The next prime is 1298467. The reversal of 1298413 is 3148921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1127844 + 170569 = 1062^2 + 413^2 .

It is a de Polignac number, because none of the positive numbers 2k-1298413 is a prime.

It is a Duffinian number.

Its product of digits (1728) is a multiple of the sum of its prime divisors (432).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298113) 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, 3295 + ... + 3667.

21298413 is an apocalyptic number.

It is an amenable number.

1298413 is a deficient number, since it is larger than the sum of its proper divisors (25921).

1298413 is an frugal number, since it uses more digits than its factorization.

1298413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 432 counting only the distinct ones).

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

The square root of 1298413 is about 1139.4792670338. The cubic root of 1298413 is about 109.0948589269.

It can be divided in two parts, 1298 and 413, that added together give a triangular number (1711 = T58).

The spelling of 1298413 in words is "one million, two hundred ninety-eight thousand, four hundred thirteen".

Divisors: 1 59 373 3481 22007 1298413