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144456871 = 1317653651
BaseRepresentation
bin10001001110000…
…11110010100111
3101001211011120111
420213003302213
5243440104441
622200113451
73402602026
oct1047036247
9331734514
10144456871
11745a6649
1240465887
1323c0ab50
14152848bd
15ca37081
hex89c3ca7

144456871 has 8 divisors (see below), whose sum is σ = 164720304. Its totient is φ = 125500800.

The previous prime is 144456863. The next prime is 144456881. The reversal of 144456871 is 178654441.

144456871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 144456871 - 23 = 144456863 is a prime.

It is a super-2 number, since 2×1444568712 = 41735575158221282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144456811) 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, 326605 + ... + 327046.

It is an arithmetic number, because the mean of its divisors is an integer number (20590038).

Almost surely, 2144456871 is an apocalyptic number.

144456871 is a deficient number, since it is larger than the sum of its proper divisors (20263433).

144456871 is a wasteful number, since it uses less digits than its factorization.

144456871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653681.

The product of its digits is 107520, while the sum is 40.

The square root of 144456871 is about 12019.0212163886. The cubic root of 144456871 is about 524.7020180524.

It can be divided in two parts, 14445 and 6871, that added together give a square (21316 = 1462).

The spelling of 144456871 in words is "one hundred forty-four million, four hundred fifty-six thousand, eight hundred seventy-one".

Divisors: 1 13 17 221 653651 8497463 11112067 144456871