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1398276 = 2233112107
BaseRepresentation
bin101010101011000000100
32122001002000
411111120010
5324221101
645545300
714612415
oct5253004
92561060
101398276
11875600
12575230
1339c5a9
1428580c
151c9486
hex155604

1398276 has 72 divisors (see below), whose sum is σ = 4021920. Its totient is φ = 419760.

The previous prime is 1398269. The next prime is 1398281. The reversal of 1398276 is 6728931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1398276.

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, 13015 + ... + 13121.

It is an arithmetic number, because the mean of its divisors is an integer number (55860).

21398276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1398276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2010960).

1398276 is an abundant number, since it is smaller than the sum of its proper divisors (2623644).

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

1398276 is a wasteful number, since it uses less digits than its factorization.

1398276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 123 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1398276 is about 1182.4872092331. The cubic root of 1398276 is about 111.8229558288.

It can be divided in two parts, 13 and 98276, that added together give a palindrome (98289).

The spelling of 1398276 in words is "one million, three hundred ninety-eight thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 107 108 121 132 198 214 242 297 321 363 396 428 484 594 642 726 963 1089 1177 1188 1284 1452 1926 2178 2354 2889 3267 3531 3852 4356 4708 5778 6534 7062 10593 11556 12947 13068 14124 21186 25894 31779 38841 42372 51788 63558 77682 116523 127116 155364 233046 349569 466092 699138 1398276