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147660 = 223523107
BaseRepresentation
bin100100000011001100
321111112220
4210003030
514211120
63055340
71153332
oct440314
9244486
10147660
11a0a37
1271550
1352296
143bb52
152db40
hex240cc

147660 has 48 divisors (see below), whose sum is σ = 435456. Its totient is φ = 37312.

The previous prime is 147647. The next prime is 147661. The reversal of 147660 is 66741.

It is a self number, because there is not a number n which added to its sum of digits gives 147660.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147660.

It is not an unprimeable number, because it can be changed into a prime (147661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1327 + ... + 1433.

It is an arithmetic number, because the mean of its divisors is an integer number (9072).

2147660 is an apocalyptic number.

147660 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 147660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217728).

147660 is an abundant number, since it is smaller than the sum of its proper divisors (287796).

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

147660 is a wasteful number, since it uses less digits than its factorization.

147660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 147660 is about 384.2655331929. The cubic root of 147660 is about 52.8551879342.

It can be divided in two parts, 147 and 660, that multiplied together give a triangular number (97020 = T440).

The spelling of 147660 in words is "one hundred forty-seven thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 107 115 138 214 230 276 321 345 428 460 535 642 690 1070 1284 1380 1605 2140 2461 3210 4922 6420 7383 9844 12305 14766 24610 29532 36915 49220 73830 147660