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142300254 = 2343354773
BaseRepresentation
bin10000111101101…
…01010001011110
3100220202121020210
420132311101132
5242412102004
622041553250
73345350355
oct1036652136
9326677223
10142300254
1173363318
123b7a5826
1323634345
1414c8299c
15c75d089
hex87b545e

142300254 has 16 divisors (see below), whose sum is σ = 285262992. Its totient is φ = 47323008.

The previous prime is 142300243. The next prime is 142300267. The reversal of 142300254 is 452003241.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142300254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24789 + ... + 29984.

It is an arithmetic number, because the mean of its divisors is an integer number (17828937).

Almost surely, 2142300254 is an apocalyptic number.

142300254 is an abundant number, since it is smaller than the sum of its proper divisors (142962738).

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

142300254 is a wasteful number, since it uses less digits than its factorization.

142300254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55211.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 142300254 is about 11928.9670131156. The cubic root of 142300254 is about 522.0777984777.

Adding to 142300254 its reverse (452003241), we get a palindrome (594303495).

The spelling of 142300254 in words is "one hundred forty-two million, three hundred thousand, two hundred fifty-four".

Divisors: 1 2 3 6 433 866 1299 2598 54773 109546 164319 328638 23716709 47433418 71150127 142300254