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144970145 = 5227127727
BaseRepresentation
bin10001010010000…
…01000110100001
3101002210020122122
420221001012201
5244103021040
622215114025
73410140325
oct1051010641
9332706578
10144970145
1174917241
1240672915
132405a668
1415379985
15cad91b5
hex8a411a1

144970145 has 8 divisors (see below), whose sum is σ = 174731904. Its totient is φ = 115464304.

The previous prime is 144970141. The next prime is 144970151. The reversal of 144970145 is 541079441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144970145 - 22 = 144970141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144970141) 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, 62729 + ... + 64998.

It is an arithmetic number, because the mean of its divisors is an integer number (21841488).

Almost surely, 2144970145 is an apocalyptic number.

It is an amenable number.

144970145 is a deficient number, since it is larger than the sum of its proper divisors (29761759).

144970145 is a wasteful number, since it uses less digits than its factorization.

144970145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127959.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 144970145 is about 12040.3548535747. The cubic root of 144970145 is about 525.3227282535.

The spelling of 144970145 in words is "one hundred forty-four million, nine hundred seventy thousand, one hundred forty-five".

Divisors: 1 5 227 1135 127727 638635 28994029 144970145