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142865007 = 3471013227
BaseRepresentation
bin10001000001111…
…11001001101111
3100221211021221120
420200333021233
5243033140012
622102032023
73353222025
oct1040771157
9327737846
10142865007
117370965a
123ba18613
13237a140c
1414d8c715
15c82058c
hex883f26f

142865007 has 8 divisors (see below), whose sum is σ = 194539776. Its totient is φ = 93216792.

The previous prime is 142864999. The next prime is 142865011. The reversal of 142865007 is 700568241.

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

It is not a de Polignac number, because 142865007 - 23 = 142864999 is a prime.

It is a super-2 number, since 2×1428650072 = 40820820450220098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142865027) 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, 506473 + ... + 506754.

It is an arithmetic number, because the mean of its divisors is an integer number (24317472).

Almost surely, 2142865007 is an apocalyptic number.

142865007 is a deficient number, since it is larger than the sum of its proper divisors (51674769).

142865007 is a wasteful number, since it uses less digits than its factorization.

142865007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013277.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 142865007 is about 11952.6150695151. The cubic root of 142865007 is about 522.7675508330.

The spelling of 142865007 in words is "one hundred forty-two million, eight hundred sixty-five thousand, seven".

Divisors: 1 3 47 141 1013227 3039681 47621669 142865007