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142714405 = 5171678993
BaseRepresentation
bin10001000000110…
…10011000100101
3100221112122100201
420200122120211
5243013330110
622054510501
73352023661
oct1040323045
9327478321
10142714405
1173616499
123b965431
132374a9c2
1414d4d8a1
15c7e0b3a
hex881a625

142714405 has 8 divisors (see below), whose sum is σ = 181331352. Its totient is φ = 107455488.

The previous prime is 142714393. The next prime is 142714409. The reversal of 142714405 is 504417241.

It can be written as a sum of positive squares in 4 ways, for example, as 55086084 + 87628321 = 7422^2 + 9361^2 .

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 142714405 - 27 = 142714277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142714409) 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, 839412 + ... + 839581.

It is an arithmetic number, because the mean of its divisors is an integer number (22666419).

Almost surely, 2142714405 is an apocalyptic number.

It is an amenable number.

142714405 is a deficient number, since it is larger than the sum of its proper divisors (38616947).

142714405 is a wasteful number, since it uses less digits than its factorization.

142714405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679015.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 142714405 is about 11946.3134480893. The cubic root of 142714405 is about 522.5837934033.

The spelling of 142714405 in words is "one hundred forty-two million, seven hundred fourteen thousand, four hundred five".

Divisors: 1 5 17 85 1678993 8394965 28542881 142714405