Search a number
-
+
142708880 = 24517104933
BaseRepresentation
bin10001000000110…
…01000010010000
3100221112100210002
420200121002100
5243013141010
622054425132
73352001606
oct1040310220
9327470702
10142708880
1173612326
123b9621a8
1323748332
1414d4b876
15c7de1a5
hex8819090

142708880 has 40 divisors (see below), whose sum is σ = 351319032. Its totient is φ = 53725184.

The previous prime is 142708849. The next prime is 142708901. The reversal of 142708880 is 88807241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28047616 + 114661264 = 5296^2 + 10708^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51107 + ... + 53826.

Almost surely, 2142708880 is an apocalyptic number.

142708880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142708880 is an abundant number, since it is smaller than the sum of its proper divisors (208610152).

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

142708880 is a wasteful number, since it uses less digits than its factorization.

142708880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104963 (or 104957 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 142708880 is about 11946.0822029651. The cubic root of 142708880 is about 522.5770496022.

The spelling of 142708880 in words is "one hundred forty-two million, seven hundred eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 104933 209866 419732 524665 839464 1049330 1678928 1783861 2098660 3567722 4197320 7135444 8394640 8919305 14270888 17838610 28541776 35677220 71354440 142708880