Search a number
-
+
38620430065385 = 578959532082683
BaseRepresentation
bin10001100100000000001010…
…00000111101111011101001
312001202002002011201001212222
420302000011000331323221
520030224120044043020
6214045551452443425
711064143155062350
oct1062000500757351
9161662064631788
1038620430065385
111133a917a37343
1243b8a93a79575
131871b774a579c
1497734b344997
1546e915479b25
hex23200503dee9

38620430065385 has 32 divisors (see below), whose sum is σ = 53569298315520. Its totient is φ = 26180612333568.

The previous prime is 38620430065339. The next prime is 38620430065447. The reversal of 38620430065385 is 58356003402683.

It is not a de Polignac number, because 38620430065385 - 216 = 38620429999849 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17502254 + ... + 19584936.

It is an arithmetic number, because the mean of its divisors is an integer number (1674040572360).

Almost surely, 238620430065385 is an apocalyptic number.

38620430065385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38620430065385 is a deficient number, since it is larger than the sum of its proper divisors (14948868250135).

38620430065385 is a wasteful number, since it uses less digits than its factorization.

38620430065385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088737.

The product of its (nonzero) digits is 12441600, while the sum is 53.

The spelling of 38620430065385 in words is "thirty-eight trillion, six hundred twenty billion, four hundred thirty million, sixty-five thousand, three hundred eighty-five".

Divisors: 1 5 7 35 89 445 623 3115 5953 29765 41671 208355 529817 2082683 2649085 3708719 10413415 14578781 18543595 72893905 185358787 926793935 1297511509 6487557545 12398211899 61991059495 86787483293 433937416465 1103440859011 5517204295055 7724086013077 38620430065385