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142251250 = 254313671
BaseRepresentation
bin10000111101010…
…01010011110010
3100220200010000211
420132221103302
5242404020000
622040534334
73345054451
oct1036512362
9326603024
10142251250
117332a519
123b7813aa
1323617c4b
1414c6cb98
15c74d7ba
hex87a94f2

142251250 has 40 divisors (see below), whose sum is σ = 275311872. Its totient is φ = 55050000.

The previous prime is 142251247. The next prime is 142251253. The reversal of 142251250 is 52152241.

142251250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142251247) and next prime (142251253).

It is not an unprimeable number, because it can be changed into a prime (142251253) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36915 + ... + 40585.

Almost surely, 2142251250 is an apocalyptic number.

142251250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142251250 is a deficient number, since it is larger than the sum of its proper divisors (133060622).

142251250 is an equidigital number, since it uses as much as digits as its factorization.

142251250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724 (or 3709 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 142251250 is about 11926.9128444875. The cubic root of 142251250 is about 522.0178622113.

Subtracting from 142251250 its reverse (52152241), we obtain a palindrome (90099009).

The spelling of 142251250 in words is "one hundred forty-two million, two hundred fifty-one thousand, two hundred fifty".

Divisors: 1 2 5 10 25 31 50 62 125 155 250 310 625 775 1250 1550 3671 3875 7342 7750 18355 19375 36710 38750 91775 113801 183550 227602 458875 569005 917750 1138010 2294375 2845025 4588750 5690050 14225125 28450250 71125625 142251250