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147730132 = 221117918757
BaseRepresentation
bin10001100111000…
…10111011010100
3101021222110122101
420303202323110
5300304331012
622354211444
73442454044
oct1063427324
9337873571
10147730132
1176431920
1241583b84
13247b59a4
1415897724
15ce81d57
hex8ce2ed4

147730132 has 24 divisors (see below), whose sum is σ = 283620960. Its totient is φ = 66771360.

The previous prime is 147730129. The next prime is 147730171. The reversal of 147730132 is 231037741.

147730132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 147730132.

It is a congruent 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, 1503 + ... + 17254.

It is an arithmetic number, because the mean of its divisors is an integer number (11817540).

Almost surely, 2147730132 is an apocalyptic number.

It is an amenable number.

147730132 is a deficient number, since it is larger than the sum of its proper divisors (135890828).

147730132 is a wasteful number, since it uses less digits than its factorization.

147730132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18951 (or 18949 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 147730132 is about 12154.4284933517. The cubic root of 147730132 is about 528.6355457231.

Adding to 147730132 its reverse (231037741), we get a palindrome (378767873).

The spelling of 147730132 in words is "one hundred forty-seven million, seven hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 4 11 22 44 179 358 716 1969 3938 7876 18757 37514 75028 206327 412654 825308 3357503 6715006 13430012 36932533 73865066 147730132