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8081430 = 2357291327
BaseRepresentation
bin11110110101000000010110
3120012120122020
4132311000112
54032101210
6445114010
7125456010
oct36650026
916176566
108081430
11461a775
122858906
13189c516
1411051b0
15a99770
hex7b5016

8081430 has 64 divisors (see below), whose sum is σ = 22947840. Its totient is φ = 1782144.

The previous prime is 8081419. The next prime is 8081471. The reversal of 8081430 is 341808.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 8081430.

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 31 ways as a sum of consecutive naturals, for example, 5427 + ... + 6753.

It is an arithmetic number, because the mean of its divisors is an integer number (358560).

Almost surely, 28081430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8081430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11473920).

8081430 is an abundant number, since it is smaller than the sum of its proper divisors (14866410).

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

8081430 is a wasteful number, since it uses less digits than its factorization.

8081430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 8081430 is about 2842.7856057044. The cubic root of 8081430 is about 200.6762938886.

The spelling of 8081430 in words is "eight million, eighty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 29 30 35 42 58 70 87 105 145 174 203 210 290 406 435 609 870 1015 1218 1327 2030 2654 3045 3981 6090 6635 7962 9289 13270 18578 19905 27867 38483 39810 46445 55734 76966 92890 115449 139335 192415 230898 269381 278670 384830 538762 577245 808143 1154490 1346905 1616286 2693810 4040715 8081430