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38557005340 = 2257239343883
BaseRepresentation
bin100011111010001011…
…010011011000011100
310200112002210210221211
4203322023103120130
51112431043132330
625413550234204
72533323065200
oct437213233034
9120462723854
1038557005340
1115396473877
1275807b5964
13383612c179
141c1aaa6b00
151009e9cd2a
hex8fa2d361c

38557005340 has 36 divisors (see below), whose sum is σ = 94189258296. Its totient is φ = 13219544352.

The previous prime is 38557005301. The next prime is 38557005341. The reversal of 38557005340 is 4350075583.

38557005340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 38557005293 and 38557005302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38557005341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19670962 + ... + 19672921.

It is an arithmetic number, because the mean of its divisors is an integer number (2616368286).

Almost surely, 238557005340 is an apocalyptic number.

It is an amenable number.

38557005340 is an abundant number, since it is smaller than the sum of its proper divisors (55632252956).

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

38557005340 is a wasteful number, since it uses less digits than its factorization.

38557005340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39343906 (or 39343897 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 38557005340 in words is "thirty-eight billion, five hundred fifty-seven million, five thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 39343883 78687766 157375532 196719415 275407181 393438830 550814362 786877660 1101628724 1377035905 1927850267 2754071810 3855700534 5508143620 7711401068 9639251335 19278502670 38557005340