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142884357 = 3711618547
BaseRepresentation
bin10001000010000…
…11111000000101
3100221212021111020
420201003320011
5243034244412
622102301353
73353332320
oct1041037005
9327767436
10142884357
1173722150
123ba27859
13237aa175
1414d957b7
15c82618c
hex8843e05

142884357 has 16 divisors (see below), whose sum is σ = 237522432. Its totient is φ = 74225520.

The previous prime is 142884341. The next prime is 142884359. The reversal of 142884357 is 753488241.

It is not a de Polignac number, because 142884357 - 24 = 142884341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142884359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309043 + ... + 309504.

It is an arithmetic number, because the mean of its divisors is an integer number (14845152).

Almost surely, 2142884357 is an apocalyptic number.

It is an amenable number.

142884357 is a deficient number, since it is larger than the sum of its proper divisors (94638075).

142884357 is a wasteful number, since it uses less digits than its factorization.

142884357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618568.

The product of its digits is 215040, while the sum is 42.

The square root of 142884357 is about 11953.4244884050. The cubic root of 142884357 is about 522.7911514232.

The spelling of 142884357 in words is "one hundred forty-two million, eight hundred eighty-four thousand, three hundred fifty-seven".

Divisors: 1 3 7 11 21 33 77 231 618547 1855641 4329829 6804017 12989487 20412051 47628119 142884357