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8405130 = 235503557
BaseRepresentation
bin100000000100…
…000010001010
3120211000200010
4200010002022
54122431010
6500052350
7131304516
oct40040212
916730603
108405130
114820998
1229940b6
131983966
14118b146
15b10620
hex80408a

8405130 has 32 divisors (see below), whose sum is σ = 20248704. Its totient is φ = 2232896.

The previous prime is 8405101. The next prime is 8405149. The reversal of 8405130 is 315048.

It is a junction number, because it is equal to n+sod(n) for n = 8405097 and 8405106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14812 + ... + 15368.

It is an arithmetic number, because the mean of its divisors is an integer number (632772).

Almost surely, 28405130 is an apocalyptic number.

8405130 is an abundant number, since it is smaller than the sum of its proper divisors (11843574).

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

8405130 is a wasteful number, since it uses less digits than its factorization.

8405130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 8405130 is about 2899.1602232371. The cubic root of 8405130 is about 203.3206447933.

The spelling of 8405130 in words is "eight million, four hundred five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 503 557 1006 1114 1509 1671 2515 2785 3018 3342 5030 5570 7545 8355 15090 16710 280171 560342 840513 1400855 1681026 2801710 4202565 8405130