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144151431 = 3298918617
BaseRepresentation
bin10001001011110…
…01001110000111
3101001020122120220
420211321032013
5243400321211
622145355423
73400160364
oct1045711607
9331218526
10144151431
1174408116
1240338b73
1323b31b08
141520546b
15c9c6806
hex8979387

144151431 has 16 divisors (see below), whose sum is σ = 201074400. Its totient is φ = 91739648.

The previous prime is 144151429. The next prime is 144151453. The reversal of 144151431 is 134151441.

It is a happy number.

144151431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 144151431 - 21 = 144151429 is a prime.

It is a super-2 number, since 2×1441514312 = 41559270118695522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144151411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1566 + ... + 17051.

It is an arithmetic number, because the mean of its divisors is an integer number (12567150).

Almost surely, 2144151431 is an apocalyptic number.

144151431 is a deficient number, since it is larger than the sum of its proper divisors (56922969).

144151431 is a wasteful number, since it uses less digits than its factorization.

144151431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18738.

The product of its digits is 960, while the sum is 24.

The square root of 144151431 is about 12006.3079670646. The cubic root of 144151431 is about 524.3319466462.

The spelling of 144151431 in words is "one hundred forty-four million, one hundred fifty-one thousand, four hundred thirty-one".

Divisors: 1 3 29 87 89 267 2581 7743 18617 55851 539893 1619679 1656913 4970739 48050477 144151431