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1307934 = 23353457
BaseRepresentation
bin100111111010100011110
32110110011000
410333110132
5313323214
644011130
714055135
oct4772436
92413130
101307934
11813741
12530aa6
1336a434
1426091c
151ac809
hex13f51e

1307934 has 32 divisors (see below), whose sum is σ = 2967840. Its totient is φ = 426816.

The previous prime is 1307927. The next prime is 1307951. The reversal of 1307934 is 4397031.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1307898 and 1307907.

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 15 ways as a sum of consecutive naturals, for example, 2634 + ... + 3090.

It is an arithmetic number, because the mean of its divisors is an integer number (92745).

21307934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1307934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483920).

1307934 is an abundant number, since it is smaller than the sum of its proper divisors (1659906).

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

1307934 is a wasteful number, since it uses less digits than its factorization.

1307934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1307934 is about 1143.6494218072. The cubic root of 1307934 is about 109.3608666364.

The spelling of 1307934 in words is "one million, three hundred seven thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 9 18 27 53 54 106 159 318 457 477 914 954 1371 1431 2742 2862 4113 8226 12339 24221 24678 48442 72663 145326 217989 435978 653967 1307934