Search a number
-
+
1297950 = 235217509
BaseRepresentation
bin100111100111000011110
32102221110020
410330320132
5313013300
643453010
714014053
oct4747036
92387406
101297950
11807195
12527166
13365a24
1425b02a
151a98a0
hex13ce1e

1297950 has 48 divisors (see below), whose sum is σ = 3414960. Its totient is φ = 325120.

The previous prime is 1297927. The next prime is 1297963. The reversal of 1297950 is 597921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2296 + ... + 2804.

It is an arithmetic number, because the mean of its divisors is an integer number (71145).

21297950 is an apocalyptic number.

1297950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1297950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707480).

1297950 is an abundant number, since it is smaller than the sum of its proper divisors (2117010).

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

1297950 is a wasteful number, since it uses less digits than its factorization.

1297950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 1297950 is about 1139.2760859423. The cubic root of 1297950 is about 109.0818900372.

The spelling of 1297950 in words is "one million, two hundred ninety-seven thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 10 15 17 25 30 34 50 51 75 85 102 150 170 255 425 509 510 850 1018 1275 1527 2545 2550 3054 5090 7635 8653 12725 15270 17306 25450 25959 38175 43265 51918 76350 86530 129795 216325 259590 432650 648975 1297950