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142498404 = 2232191811151
BaseRepresentation
bin10000111111001…
…01101001100100
3100221010200001200
420133211221210
5242434422104
622050122500
73350134146
oct1037455144
9327120050
10142498404
1173489184
123b880430
13236a35a9
1414cd4c96
15c79bb39
hex87e5a64

142498404 has 72 divisors (see below), whose sum is σ = 381588480. Its totient is φ = 44712000.

The previous prime is 142498399. The next prime is 142498417. The reversal of 142498404 is 404894241.

142498404 is a `hidden beast` number, since 1 + 4 + 249 + 8 + 404 = 666.

142498404 is digitally balanced in base 2, because in such base 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 (36).

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, 123229 + ... + 124379.

It is an arithmetic number, because the mean of its divisors is an integer number (5299840).

Almost surely, 2142498404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142498404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190794240).

142498404 is an abundant number, since it is smaller than the sum of its proper divisors (239090076).

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

142498404 is a wasteful number, since it uses less digits than its factorization.

142498404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 142498404 is about 11937.2695370424. The cubic root of 142498404 is about 522.3200134019.

The spelling of 142498404 in words is "one hundred forty-two million, four hundred ninety-eight thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 181 228 342 362 543 684 724 1086 1151 1629 2172 2302 3258 3439 3453 4604 6516 6878 6906 10317 10359 13756 13812 20634 20718 21869 30951 41268 41436 43738 61902 65607 87476 123804 131214 196821 208331 262428 393642 416662 624993 787284 833324 1249986 1874979 2499972 3749958 3958289 7499916 7916578 11874867 15833156 23749734 35624601 47499468 71249202 142498404