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147444 = 223111117
BaseRepresentation
bin100011111111110100
321111020220
4203333310
514204234
63054340
71152603
oct437764
9244226
10147444
11a0860
12713b0
135215b
143ba3a
152da49
hex23ff4

147444 has 24 divisors (see below), whose sum is σ = 375648. Its totient is φ = 44640.

The previous prime is 147419. The next prime is 147449. The reversal of 147444 is 444741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427 + ... + 690.

It is an arithmetic number, because the mean of its divisors is an integer number (15652).

2147444 is an apocalyptic number.

It is an amenable number.

147444 is an abundant number, since it is smaller than the sum of its proper divisors (228204).

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

147444 is a wasteful number, since it uses less digits than its factorization.

147444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1133 counting only the distinct ones).

The product of its digits is 1792, while the sum is 24.

The square root of 147444 is about 383.9843746821. The cubic root of 147444 is about 52.8294028153.

The spelling of 147444 in words is "one hundred forty-seven thousand, four hundred forty-four", and thus it is an iban number.

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1117 2234 3351 4468 6702 12287 13404 24574 36861 49148 73722 147444