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1317948 = 223109829
BaseRepresentation
bin101000001110000111100
32110221212220
411001300330
5314133243
644125340
714126262
oct5016074
92427786
101317948
11820215
12536850
13371b68
14264432
151b0783
hex141c3c

1317948 has 12 divisors (see below), whose sum is σ = 3075240. Its totient is φ = 439312.

The previous prime is 1317947. The next prime is 1317961. The reversal of 1317948 is 8497131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54903 + ... + 54926.

It is an arithmetic number, because the mean of its divisors is an integer number (256270).

21317948 is an apocalyptic number.

It is an amenable number.

1317948 is an abundant number, since it is smaller than the sum of its proper divisors (1757292).

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

1317948 is a wasteful number, since it uses less digits than its factorization.

1317948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109836 (or 109834 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 1317948 is about 1148.0191636031. The cubic root of 1317948 is about 109.6392590278.

The spelling of 1317948 in words is "one million, three hundred seventeen thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 109829 219658 329487 439316 658974 1317948