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8130070 = 251362539
BaseRepresentation
bin11111000000111000010110
3120022001100201
4133000320112
54040130240
6450131114
7126050554
oct37007026
916261321
108130070
114653273
122880a9a
1318b86c0
141118bd4
15aa8d9a
hex7c0e16

8130070 has 16 divisors (see below), whose sum is σ = 15760080. Its totient is φ = 3001824.

The previous prime is 8130007. The next prime is 8130071. The reversal of 8130070 is 700318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8130071) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 31140 + ... + 31399.

It is an arithmetic number, because the mean of its divisors is an integer number (985005).

Almost surely, 28130070 is an apocalyptic number.

8130070 is a deficient number, since it is larger than the sum of its proper divisors (7630010).

8130070 is a wasteful number, since it uses less digits than its factorization.

8130070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62559.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 8130070 is about 2851.3277608861. The cubic root of 8130070 is about 201.0780947827.

Adding to 8130070 its reverse (700318), we get a palindrome (8830388).

The spelling of 8130070 in words is "eight million, one hundred thirty thousand, seventy".

Divisors: 1 2 5 10 13 26 65 130 62539 125078 312695 625390 813007 1626014 4065035 8130070