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142102260 = 223253792083
BaseRepresentation
bin10000111100001…
…00111011110100
3100220101112122200
420132010323310
5242334233020
622033424500
73343564206
oct1036047364
9326345580
10142102260
1173238593
123b70b130
13235951a1
1414c30776
15c71e590
hex8784ef4

142102260 has 72 divisors (see below), whose sum is σ = 432388320. Its totient is φ = 37775808.

The previous prime is 142102241. The next prime is 142102271. The reversal of 142102260 is 62201241.

142102260 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67179 + ... + 69261.

Almost surely, 2142102260 is an apocalyptic number.

142102260 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 142102260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216194160).

142102260 is an abundant number, since it is smaller than the sum of its proper divisors (290286060).

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

142102260 is a wasteful number, since it uses less digits than its factorization.

142102260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477 (or 2472 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 142102260 is about 11920.6652498927. The cubic root of 142102260 is about 521.8355495535.

The spelling of 142102260 in words is "one hundred forty-two million, one hundred two thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 379 758 1137 1516 1895 2083 2274 3411 3790 4166 4548 5685 6249 6822 7580 8332 10415 11370 12498 13644 17055 18747 20830 22740 24996 31245 34110 37494 41660 62490 68220 74988 93735 124980 187470 374940 789457 1578914 2368371 3157828 3947285 4736742 7105113 7894570 9473484 11841855 14210226 15789140 23683710 28420452 35525565 47367420 71051130 142102260