Search a number
-
+
142504670 = 25711185071
BaseRepresentation
bin10000111111001…
…11001011011110
3100221010222122202
420133213023132
5242440122140
622050211502
73350161340
oct1037471336
9327128582
10142504670
1173492960
123b883b92
13236a63b9
1414cd7290
15c79d915
hex87e72de

142504670 has 32 divisors (see below), whose sum is σ = 319804416. Its totient is φ = 44416800.

The previous prime is 142504669. The next prime is 142504679. The reversal of 142504670 is 76405241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142504679) 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 15 ways as a sum of consecutive naturals, for example, 91766 + ... + 93305.

It is an arithmetic number, because the mean of its divisors is an integer number (9993888).

Almost surely, 2142504670 is an apocalyptic number.

142504670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142504670 is an abundant number, since it is smaller than the sum of its proper divisors (177299746).

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

142504670 is a wasteful number, since it uses less digits than its factorization.

142504670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185096.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 142504670 is about 11937.5319894859. The cubic root of 142504670 is about 522.3276691817.

The spelling of 142504670 in words is "one hundred forty-two million, five hundred four thousand, six hundred seventy".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 185071 370142 925355 1295497 1850710 2035781 2590994 4071562 6477485 10178905 12954970 14250467 20357810 28500934 71252335 142504670