Search a number
-
+
38430215378161 = 438111102004857
BaseRepresentation
bin10001011110011101110110…
…10101100001010011110001
312001001220002210012210000021
420233032323111201103301
520014120040114100121
6213422332555523441
711044330363652125
oct1057167325412361
9161056083183007
1038430215378161
11112771877864a2
124388049459581
131859c52546619
1496c064a9d585
154699d1107641
hex22f3bb5614f1

38430215378161 has 8 divisors (see below), whose sum is σ = 39372429566624. Its totient is φ = 37490205201120.

The previous prime is 38430215378111. The next prime is 38430215378173. The reversal of 38430215378161 is 16187351203483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38430215378161 - 27 = 38430215378033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38430215378099 and 38430215378108.

It is not an unprimeable number, because it can be changed into a prime (38430215378101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550967556 + ... + 551037301.

It is an arithmetic number, because the mean of its divisors is an integer number (4921553695828).

Almost surely, 238430215378161 is an apocalyptic number.

It is an amenable number.

38430215378161 is a deficient number, since it is larger than the sum of its proper divisors (942214188463).

38430215378161 is a wasteful number, since it uses less digits than its factorization.

38430215378161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102005711.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 38430215378161 in words is "thirty-eight trillion, four hundred thirty billion, two hundred fifteen million, three hundred seventy-eight thousand, one hundred sixty-one".

Divisors: 1 43 811 34873 1102004857 47386208851 893725939027 38430215378161