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8348420 = 2254110181
BaseRepresentation
bin11111110110001100000100
3120201010212202
4133312030010
54114122140
6454534032
7130650263
oct37661404
916633782
108348420
114792323
122967318
131963bc2
1411745da
15aed915
hex7f6304

8348420 has 24 divisors (see below), whose sum is σ = 17961048. Its totient is φ = 3257600.

The previous prime is 8348413. The next prime is 8348423. The reversal of 8348420 is 248438.

It can be written as a sum of positive squares in 4 ways, for example, as 65536 + 8282884 = 256^2 + 2878^2 .

It is a super-2 number, since 2×83484202 = 139392232992800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8348423) 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, 4271 + ... + 5910.

It is an arithmetic number, because the mean of its divisors is an integer number (748377).

Almost surely, 28348420 is an apocalyptic number.

It is an amenable number.

8348420 is an abundant number, since it is smaller than the sum of its proper divisors (9612628).

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

8348420 is a wasteful number, since it uses less digits than its factorization.

8348420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10231 (or 10229 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 8348420 is about 2889.3632516525. The cubic root of 8348420 is about 202.8623396332.

The spelling of 8348420 in words is "eight million, three hundred forty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 10181 20362 40724 50905 101810 203620 417421 834842 1669684 2087105 4174210 8348420