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38830050280 = 2357138678751
BaseRepresentation
bin100100001010011100…
…111000101111101000
310201020010120221012101
4210022130320233220
51114010443102110
625501022423144
72543146660450
oct441234705750
9121203527171
1038830050280
111551660754a
127638131ab4
13387a87cc18
141c45060d60
151023e3513a
hex90a738be8

38830050280 has 32 divisors (see below), whose sum is σ = 99848701440. Its totient is φ = 13313160000.

The previous prime is 38830050241. The next prime is 38830050293. The reversal of 38830050280 is 8205003883.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69339096 + ... + 69339655.

It is an arithmetic number, because the mean of its divisors is an integer number (3120271920).

Almost surely, 238830050280 is an apocalyptic number.

It is an amenable number.

38830050280 is an abundant number, since it is smaller than the sum of its proper divisors (61018651160).

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

38830050280 is a wasteful number, since it uses less digits than its factorization.

38830050280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138678769 (or 138678765 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 38830050280 in words is "thirty-eight billion, eight hundred thirty million, fifty thousand, two hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 138678751 277357502 554715004 693393755 970751257 1109430008 1386787510 1941502514 2773575020 3883005028 4853756285 5547150040 7766010056 9707512570 19415025140 38830050280