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1388296 = 237131907
BaseRepresentation
bin101010010111100001000
32121112101101
411102330020
5323411141
645431144
714541340
oct5227410
92545341
101388296
11869058
1256b4b4
13397ba0
14281d20
151c6531
hex152f08

1388296 has 32 divisors (see below), whose sum is σ = 3205440. Its totient is φ = 548928.

The previous prime is 1388293. The next prime is 1388297. The reversal of 1388296 is 6928831.

It is not an unprimeable number, because it can be changed into a prime (1388293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226 + ... + 1681.

It is an arithmetic number, because the mean of its divisors is an integer number (100170).

21388296 is an apocalyptic number.

It is an amenable number.

1388296 is an abundant number, since it is smaller than the sum of its proper divisors (1817144).

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

1388296 is a wasteful number, since it uses less digits than its factorization.

1388296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933 (or 1929 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 1388296 is about 1178.2597336751. The cubic root of 1388296 is about 111.5562801131.

The spelling of 1388296 in words is "one million, three hundred eighty-eight thousand, two hundred ninety-six".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 1907 3814 7628 13349 15256 24791 26698 49582 53396 99164 106792 173537 198328 347074 694148 1388296