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153768 = 23343149
BaseRepresentation
bin100101100010101000
321210221010
4211202220
514410033
63143520
71210206
oct454250
9253833
10153768
11a558a
1274ba0
1354cb4
1440076
1530863
hex258a8

153768 has 32 divisors (see below), whose sum is σ = 396000. Its totient is φ = 49728.

The previous prime is 153763. The next prime is 153817. The reversal of 153768 is 867351.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 1 + 55 + 76 + 32 + 63 + 85 .

It is not an unprimeable number, because it can be changed into a prime (153763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958 + ... + 1106.

It is an arithmetic number, because the mean of its divisors is an integer number (12375).

2153768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198000).

153768 is an abundant number, since it is smaller than the sum of its proper divisors (242232).

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

153768 is a wasteful number, since it uses less digits than its factorization.

153768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 197 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 153768 is about 392.1326306239. The cubic root of 153768 is about 53.5741540201.

The spelling of 153768 in words is "one hundred fifty-three thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 43 86 129 149 172 258 298 344 447 516 596 894 1032 1192 1788 3576 6407 12814 19221 25628 38442 51256 76884 153768