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142905414 = 2323817569
BaseRepresentation
bin10001000010010…
…01000001000110
3100221220100101010
420201021001012
5243040433124
622102543050
73353450601
oct1041110106
9327810333
10142905414
1173736a53
123ba37a86
13237b6922
1414d9d338
15c82c529
hex8849046

142905414 has 8 divisors (see below), whose sum is σ = 285810840. Its totient is φ = 47635136.

The previous prime is 142905409. The next prime is 142905461. The reversal of 142905414 is 414509241.

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

142905414 is an admirable number.

It is a super-2 number, since 2×1429054142 = 40843914701022792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11908779 + ... + 11908790.

It is an arithmetic number, because the mean of its divisors is an integer number (35726355).

Almost surely, 2142905414 is an apocalyptic number.

142905414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142905414 is a wasteful number, since it uses less digits than its factorization.

142905414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23817574.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 142905414 is about 11954.3052495743. The cubic root of 142905414 is about 522.8168315671.

The spelling of 142905414 in words is "one hundred forty-two million, nine hundred five thousand, four hundred fourteen".

Divisors: 1 2 3 6 23817569 47635138 71452707 142905414