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142702054 = 21115234259
BaseRepresentation
bin10001000000101…
…11010111100110
3100221112000102021
420200113113212
5243012431204
622054333354
73351642655
oct1040272746
9327460367
10142702054
1173608190
123b95a25a
13237451b1
1414d4919c
15c7dc154
hex88175e6

142702054 has 16 divisors (see below), whose sum is σ = 233720640. Its totient is φ = 64806760.

The previous prime is 142702031. The next prime is 142702057. The reversal of 142702054 is 450207241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142702057) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 31377 + ... + 35635.

It is an arithmetic number, because the mean of its divisors is an integer number (14607540).

Almost surely, 2142702054 is an apocalyptic number.

142702054 is a deficient number, since it is larger than the sum of its proper divisors (91018586).

142702054 is a wasteful number, since it uses less digits than its factorization.

142702054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5795.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 142702054 is about 11945.7964991875. The cubic root of 142702054 is about 522.5687175633.

Adding to 142702054 its reverse (450207241), we get a palindrome (592909295).

The spelling of 142702054 in words is "one hundred forty-two million, seven hundred two thousand, fifty-four".

Divisors: 1 2 11 22 1523 3046 4259 8518 16753 33506 46849 93698 6486457 12972914 71351027 142702054