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142884570 = 2356178079
BaseRepresentation
bin10001000010000…
…11111011011010
3100221212021210010
420201003323122
5243034301240
622102302350
73353333043
oct1041037332
9327767703
10142884570
1173722324
123ba279b6
13237aa2aa
1414d958ca
15c826280
hex8843eda

142884570 has 32 divisors (see below), whose sum is σ = 348549120. Its totient is φ = 37477440.

The previous prime is 142884569. The next prime is 142884613. The reversal of 142884570 is 75488241.

It is a happy number.

142884570 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37210 + ... + 40869.

It is an arithmetic number, because the mean of its divisors is an integer number (10892160).

Almost surely, 2142884570 is an apocalyptic number.

142884570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142884570 is an abundant number, since it is smaller than the sum of its proper divisors (205664550).

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

142884570 is a wasteful number, since it uses less digits than its factorization.

142884570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78150.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 142884570 is about 11953.4333979824. The cubic root of 142884570 is about 522.7914112008.

The spelling of 142884570 in words is "one hundred forty-two million, eight hundred eighty-four thousand, five hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 61 122 183 305 366 610 915 1830 78079 156158 234237 390395 468474 780790 1171185 2342370 4762819 9525638 14288457 23814095 28576914 47628190 71442285 142884570