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147164720 = 2451839559
BaseRepresentation
bin10001100010110…
…00111000110000
3101020220202001012
420301120320300
5300133232340
622334130052
73434610443
oct1061307060
9336822035
10147164720
117608603a
1241350928
1324648521
141578b65a
15cdbe565
hex8c58e30

147164720 has 20 divisors (see below), whose sum is σ = 342158160. Its totient is φ = 58865856.

The previous prime is 147164711. The next prime is 147164723. The reversal of 147164720 is 27461741.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (147164723) 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 3 ways as a sum of consecutive naturals, for example, 919700 + ... + 919859.

It is an arithmetic number, because the mean of its divisors is an integer number (17107908).

Almost surely, 2147164720 is an apocalyptic number.

147164720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147164720 is an abundant number, since it is smaller than the sum of its proper divisors (194993440).

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

147164720 is a wasteful number, since it uses less digits than its factorization.

147164720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839572 (or 1839566 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 147164720 is about 12131.1466894107. The cubic root of 147164720 is about 527.9602625435.

The spelling of 147164720 in words is "one hundred forty-seven million, one hundred sixty-four thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1839559 3679118 7358236 9197795 14716472 18395590 29432944 36791180 73582360 147164720