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6129830 = 257671307
BaseRepresentation
bin10111011000100010100110
3102112102112202
4113120202212
53032123310
6335214502
7103050140
oct27304246
912472482
106129830
113507483
122077432
131368125
14b57c90
158113a5
hex5d88a6

6129830 has 32 divisors (see below), whose sum is σ = 12807936. Its totient is φ = 2068704.

The previous prime is 6129811. The next prime is 6129857. The reversal of 6129830 is 389216.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 6129793 and 6129802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4037 + ... + 5343.

It is an arithmetic number, because the mean of its divisors is an integer number (400248).

Almost surely, 26129830 is an apocalyptic number.

6129830 is an abundant number, since it is smaller than the sum of its proper divisors (6678106).

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

6129830 is a wasteful number, since it uses less digits than its factorization.

6129830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 6129830 is about 2475.8493492133. The cubic root of 6129830 is about 183.0133665971.

The spelling of 6129830 in words is "six million, one hundred twenty-nine thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 67 70 134 335 469 670 938 1307 2345 2614 4690 6535 9149 13070 18298 45745 87569 91490 175138 437845 612983 875690 1225966 3064915 6129830