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144451363 = 74173539
BaseRepresentation
bin10001001110000…
…10011100100011
3101001210220000111
420213002130203
5243434420423
622200032151
73402550000
oct1047023443
9331726014
10144451363
11745a24a1
1240462657
1323c084a4
14152828a7
15ca3560d
hex89c2723

144451363 has 20 divisors (see below), whose sum is σ = 178479720. Its totient is φ = 116499264.

The previous prime is 144451313. The next prime is 144451369. The reversal of 144451363 is 363154441.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-144451363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144451369) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39048 + ... + 42586.

It is an arithmetic number, because the mean of its divisors is an integer number (8923986).

Almost surely, 2144451363 is an apocalyptic number.

144451363 is a deficient number, since it is larger than the sum of its proper divisors (34028357).

144451363 is an frugal number, since it uses more digits than its factorization.

144451363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584 (or 3563 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 144451363 is about 12018.7920774094. The cubic root of 144451363 is about 524.6953491751.

The spelling of 144451363 in words is "one hundred forty-four million, four hundred fifty-one thousand, three hundred sixty-three".

Divisors: 1 7 17 49 119 343 833 2401 3539 5831 24773 40817 60163 173411 421141 1213877 2947987 8497139 20635909 144451363