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147884940 = 223857223
BaseRepresentation
bin10001101000010…
…00101110001100
3101022021100000000
420310020232030
5300324304230
622401404300
73444000300
oct1064105614
9338240000
10147884940
1176528165
1241639690
132483b2a8
14158d7d00
15ceb2b60
hex8d08b8c

147884940 has 324 divisors, whose sum is σ = 565424496. Its totient is φ = 32332608.

The previous prime is 147884929. The next prime is 147884941. The reversal of 147884940 is 49488741.

It is a tau number, because it is divible by the number of its divisors (324).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (147884941) 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 107 ways as a sum of consecutive naturals, for example, 6429769 + ... + 6429791.

Almost surely, 2147884940 is an apocalyptic number.

147884940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147884940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282712248).

147884940 is an abundant number, since it is smaller than the sum of its proper divisors (417539556).

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

147884940 is an equidigital number, since it uses as much as digits as its factorization.

147884940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 147884940 is about 12160.7952042619. The cubic root of 147884940 is about 528.8201355585.

The spelling of 147884940 in words is "one hundred forty-seven million, eight hundred eighty-four thousand, nine hundred forty".