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8145132 = 223678761
BaseRepresentation
bin11111000100100011101100
3120022211000120
4133010203230
54041121012
6450324540
7126142512
oct37044354
916284016
108145132
114663616
122889750
1318c2508
1411204b2
15aad58c
hex7c48ec

8145132 has 12 divisors (see below), whose sum is σ = 19005336. Its totient is φ = 2715040.

The previous prime is 8145113. The next prime is 8145133. The reversal of 8145132 is 2315418.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (8145133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339369 + ... + 339392.

It is an arithmetic number, because the mean of its divisors is an integer number (1583778).

Almost surely, 28145132 is an apocalyptic number.

It is an amenable number.

8145132 is an abundant number, since it is smaller than the sum of its proper divisors (10860204).

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

8145132 is a wasteful number, since it uses less digits than its factorization.

8145132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678768 (or 678766 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 8145132 is about 2853.9677643589. The cubic root of 8145132 is about 201.2021925200.

The spelling of 8145132 in words is "eight million, one hundred forty-five thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 678761 1357522 2036283 2715044 4072566 8145132