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142040782 = 21322943337
BaseRepresentation
bin10000111011101…
…01111011001110
3100220021102022201
420131311323032
5242330301112
622032232114
73343220032
oct1035657316
9326242281
10142040782
11731a6384
123b69b63a
1323573200
1414c161c2
15c70b257
hex8775ece

142040782 has 48 divisors (see below), whose sum is σ = 244941840. Its totient is φ = 61641216.

The previous prime is 142040749. The next prime is 142040783. The reversal of 142040782 is 287040241.

It is a self number, because there is not a number n which added to its sum of digits gives 142040782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142040783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 421318 + ... + 421654.

It is an arithmetic number, because the mean of its divisors is an integer number (5102955).

Almost surely, 2142040782 is an apocalyptic number.

142040782 is a deficient number, since it is larger than the sum of its proper divisors (102901058).

142040782 is a wasteful number, since it uses less digits than its factorization.

142040782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 142040782 is about 11918.0863396772. The cubic root of 142040782 is about 521.7602844275.

The spelling of 142040782 in words is "one hundred forty-two million, forty thousand, seven hundred eighty-two".

Divisors: 1 2 13 26 29 43 58 86 169 337 338 377 559 674 754 1118 1247 2494 4381 4901 7267 8762 9773 9802 14491 14534 16211 19546 28982 32422 56953 113906 127049 188383 210743 254098 376766 420239 421486 840478 1651637 2448979 3303274 4897958 5463107 10926214 71020391 142040782