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8142070 = 251942853
BaseRepresentation
bin11111000011110011110110
3120022122211011
4133003303312
54041021240
6450302434
7126130546
oct37036366
916278734
108142070
114661292
122887a1a
1318c0cc1
14111d326
15aac6ea
hex7c3cf6

8142070 has 16 divisors (see below), whose sum is σ = 15427440. Its totient is φ = 3085344.

The previous prime is 8142049. The next prime is 8142077. The reversal of 8142070 is 702418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8142077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21237 + ... + 21616.

It is an arithmetic number, because the mean of its divisors is an integer number (964215).

Almost surely, 28142070 is an apocalyptic number.

8142070 is a deficient number, since it is larger than the sum of its proper divisors (7285370).

8142070 is a wasteful number, since it uses less digits than its factorization.

8142070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42879.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 8142070 is about 2853.4312677897. The cubic root of 8142070 is about 201.1769767088.

Adding to 8142070 its reverse (702418), we get a palindrome (8844488).

The spelling of 8142070 in words is "eight million, one hundred forty-two thousand, seventy".

Divisors: 1 2 5 10 19 38 95 190 42853 85706 214265 428530 814207 1628414 4071035 8142070