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147923 = 532791
BaseRepresentation
bin100100000111010011
321111220122
4210013103
514213143
63100455
71154156
oct440723
9244818
10147923
11a1156
127172b
1352439
143bc9d
152dc68
hex241d3

147923 has 4 divisors (see below), whose sum is σ = 150768. Its totient is φ = 145080.

The previous prime is 147919. The next prime is 147937. The reversal of 147923 is 329741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329741 = 734517.

It is a cyclic number.

It is not a de Polignac number, because 147923 - 22 = 147919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 147892 and 147901.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147923.

It is not an unprimeable number, because it can be changed into a prime (107923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343 + ... + 1448.

It is an arithmetic number, because the mean of its divisors is an integer number (37692).

2147923 is an apocalyptic number.

147923 is a deficient number, since it is larger than the sum of its proper divisors (2845).

147923 is an equidigital number, since it uses as much as digits as its factorization.

147923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844.

The product of its digits is 1512, while the sum is 26.

The square root of 147923 is about 384.6075922288. The cubic root of 147923 is about 52.8865497779.

The spelling of 147923 in words is "one hundred forty-seven thousand, nine hundred twenty-three".

Divisors: 1 53 2791 147923