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142807214 = 21143150959
BaseRepresentation
bin10001000001100…
…01000010101110
3100221201100200002
420200301002232
5243024312324
622100504302
73352561364
oct1040610256
9327640602
10142807214
117367a1a0
123b9ab092
1323781014
1414d75634
15c80d3ae
hex88310ae

142807214 has 16 divisors (see below), whose sum is σ = 239120640. Its totient is φ = 63402360.

The previous prime is 142807213. The next prime is 142807219. The reversal of 142807214 is 412708241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142807213) 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, 74534 + ... + 76425.

It is an arithmetic number, because the mean of its divisors is an integer number (14945040).

Almost surely, 2142807214 is an apocalyptic number.

142807214 is a deficient number, since it is larger than the sum of its proper divisors (96313426).

142807214 is a wasteful number, since it uses less digits than its factorization.

142807214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151015.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 142807214 is about 11950.1972368660. The cubic root of 142807214 is about 522.6970498276.

The spelling of 142807214 in words is "one hundred forty-two million, eight hundred seven thousand, two hundred fourteen".

Divisors: 1 2 11 22 43 86 473 946 150959 301918 1660549 3321098 6491237 12982474 71403607 142807214