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142126671 = 388753411
BaseRepresentation
bin10000111100010…
…10111001001111
3100220102210010210
420132022321033
5242341023141
622034133503
73344025321
oct1036127117
9326383123
10142126671
1173254965
123b721293
13235a332b
1414c39611
15c726916
hex878ae4f

142126671 has 8 divisors (see below), whose sum is σ = 189719424. Its totient is φ = 94642520.

The previous prime is 142126639. The next prime is 142126687. The reversal of 142126671 is 176621241.

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 142126671 - 25 = 142126639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142126601) 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, 24045 + ... + 29366.

It is an arithmetic number, because the mean of its divisors is an integer number (23714928).

Almost surely, 2142126671 is an apocalyptic number.

142126671 is a deficient number, since it is larger than the sum of its proper divisors (47592753).

142126671 is an equidigital number, since it uses as much as digits as its factorization.

142126671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54301.

The product of its digits is 4032, while the sum is 30.

The square root of 142126671 is about 11921.6891001234. The cubic root of 142126671 is about 521.8654289710.

The spelling of 142126671 in words is "one hundred forty-two million, one hundred twenty-six thousand, six hundred seventy-one".

Divisors: 1 3 887 2661 53411 160233 47375557 142126671