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8345138 = 231281479
BaseRepresentation
bin11111110101011000110010
3120200222101012
4133311120302
54114021023
6454510522
7130634564
oct37653062
916628335
108345138
11478a90a
122965442
131962569
141173334
15aec978
hex7f5632

8345138 has 16 divisors (see below), whose sum is σ = 12994560. Its totient is φ = 4015200.

The previous prime is 8345119. The next prime is 8345153. The reversal of 8345138 is 8315438.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17183 + ... + 17661.

It is an arithmetic number, because the mean of its divisors is an integer number (812160).

Almost surely, 28345138 is an apocalyptic number.

8345138 is a deficient number, since it is larger than the sum of its proper divisors (4649422).

8345138 is a wasteful number, since it uses less digits than its factorization.

8345138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793.

The product of its digits is 11520, while the sum is 32.

The square root of 8345138 is about 2888.7952506192. The cubic root of 8345138 is about 202.8357525079.

The spelling of 8345138 in words is "eight million, three hundred forty-five thousand, one hundred thirty-eight".

Divisors: 1 2 31 62 281 479 562 958 8711 14849 17422 29698 134599 269198 4172569 8345138