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1308372 = 223138387
BaseRepresentation
bin100111111011011010100
32110110202020
410333123110
5313331442
644013140
714056332
oct4773324
92413666
101308372
11813aaa
125311b0
1336a6b0
14260b52
151ac9ec
hex13f6d4

1308372 has 24 divisors (see below), whose sum is σ = 3288096. Its totient is φ = 402528.

The previous prime is 1308367. The next prime is 1308383. The reversal of 1308372 is 2738031.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4038 + ... + 4349.

It is an arithmetic number, because the mean of its divisors is an integer number (137004).

21308372 is an apocalyptic number.

1308372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1308372 is an abundant number, since it is smaller than the sum of its proper divisors (1979724).

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

1308372 is a wasteful number, since it uses less digits than its factorization.

1308372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8407 (or 8405 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1308372 is about 1143.8408980273. The cubic root of 1308372 is about 109.3730728368.

The spelling of 1308372 in words is "one million, three hundred eight thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 8387 16774 25161 33548 50322 100644 109031 218062 327093 436124 654186 1308372