Search a number
-
+
142373725 = 52131773353
BaseRepresentation
bin10000111110001…
…11001101011101
3100220220100000221
420133013031131
5242421424400
622043321341
73346104514
oct1037071535
9326810027
10142373725
117340353a
123b820251
132365b910
1414ca167b
15c774c1a
hex87c735d

142373725 has 48 divisors (see below), whose sum is σ = 204643152. Its totient is φ = 97320960.

The previous prime is 142373717. The next prime is 142373747. The reversal of 142373725 is 527373241.

It can be written as a sum of positive squares in 24 ways, for example, as 99261369 + 43112356 = 9963^2 + 6566^2 .

It is not a de Polignac number, because 142373725 - 23 = 142373717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 403149 + ... + 403501.

It is an arithmetic number, because the mean of its divisors is an integer number (4263399).

Almost surely, 2142373725 is an apocalyptic number.

It is an amenable number.

142373725 is a deficient number, since it is larger than the sum of its proper divisors (62269427).

142373725 is a wasteful number, since it uses less digits than its factorization.

142373725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 461 counting only the distinct ones).

The product of its digits is 35280, while the sum is 34.

The square root of 142373725 is about 11932.0461363506. The cubic root of 142373725 is about 522.1676342938.

The spelling of 142373725 in words is "one hundred forty-two million, three hundred seventy-three thousand, seven hundred twenty-five".

Divisors: 1 5 13 17 25 65 73 85 221 325 353 365 425 949 1105 1241 1765 1825 4589 4745 5525 6001 6205 8825 16133 22945 23725 25769 30005 31025 78013 80665 114725 128845 150025 334997 390065 403325 438073 644225 1674985 1950325 2190365 5694949 8374925 10951825 28474745 142373725