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142188160 = 2752947163
BaseRepresentation
bin10000111100110…
…01111010000000
3100220112220111011
420132121322000
5242400010120
622035330304
73344402512
oct1036317200
9326486434
10142188160
1173297084
123b750994
13235c530a
1414c53bb2
15c739c5a
hex8799e80

142188160 has 128 divisors (see below), whose sum is σ = 361324800. Its totient is φ = 53415936.

The previous prime is 142188157. The next prime is 142188173. The reversal of 142188160 is 61881241.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872239 + ... + 872401.

It is an arithmetic number, because the mean of its divisors is an integer number (2822850).

Almost surely, 2142188160 is an apocalyptic number.

142188160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142188160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180662400).

142188160 is an abundant number, since it is smaller than the sum of its proper divisors (219136640).

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

142188160 is a wasteful number, since it uses less digits than its factorization.

142188160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 142188160 is about 11924.2676923994. The cubic root of 142188160 is about 521.9406772375.

The spelling of 142188160 in words is "one hundred forty-two million, one hundred eighty-eight thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 47 58 64 80 94 116 128 145 160 163 188 232 235 290 320 326 376 464 470 580 640 652 752 815 928 940 1160 1304 1363 1504 1630 1856 1880 2320 2608 2726 3008 3260 3712 3760 4640 4727 5216 5452 6016 6520 6815 7520 7661 9280 9454 10432 10904 13040 13630 15040 15322 18560 18908 20864 21808 23635 26080 27260 30080 30644 37816 38305 43616 47270 52160 54520 61288 75632 76610 87232 94540 104320 109040 122576 151264 153220 174464 189080 218080 222169 245152 302528 306440 378160 436160 444338 490304 605056 612880 756320 872320 888676 980608 1110845 1225760 1512640 1777352 2221690 2451520 3025280 3554704 4443380 4903040 7109408 8886760 14218816 17773520 28437632 35547040 71094080 142188160