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142067980 = 225172811487
BaseRepresentation
bin10000111011111…
…00100100001100
3100220022210122001
420131330210030
5242332133410
622033002044
73343362235
oct1035744414
9326283561
10142067980
117321485a
123b6b3324
13235826c2
1414c2208c
15c71433a
hex877c90c

142067980 has 48 divisors (see below), whose sum is σ = 317229696. Its totient is φ = 53258240.

The previous prime is 142067977. The next prime is 142067999. The reversal of 142067980 is 89760241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94797 + ... + 96283.

It is an arithmetic number, because the mean of its divisors is an integer number (6608952).

Almost surely, 2142067980 is an apocalyptic number.

142067980 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 142067980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158614848).

142067980 is an abundant number, since it is smaller than the sum of its proper divisors (175161716).

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

142067980 is a wasteful number, since it uses less digits than its factorization.

142067980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 142067980 is about 11919.2273239502. The cubic root of 142067980 is about 521.7935845600.

The spelling of 142067980 in words is "one hundred forty-two million, sixty-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 281 340 562 1124 1405 1487 2810 2974 4777 5620 5948 7435 9554 14870 19108 23885 25279 29740 47770 50558 95540 101116 126395 252790 417847 505580 835694 1671388 2089235 4178470 7103399 8356940 14206798 28413596 35516995 71033990 142067980