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38813858610805 = 5233534019237901
BaseRepresentation
bin10001101001101000011100…
…10000010011111001110101
312002102120100112122021101201
420310310032100103321311
520041411240301021210
6214314501313452501
711114131412431555
oct1064641620237165
9162376315567351
1038813858610805
1111404957346443
12442a476871131
1318871922161a5
1498285a781165
15474986a3653a
hex234d0e413e75

38813858610805 has 32 divisors (see below), whose sum is σ = 48751715255040. Its totient is φ = 29609407027200.

The previous prime is 38813858610757. The next prime is 38813858610829. The reversal of 38813858610805 is 50801685831883.

It is not a de Polignac number, because 38813858610805 - 211 = 38813858608757 is a prime.

It is a super-2 number, since 2×388138586108052 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163032355 + ... + 163270255.

It is an arithmetic number, because the mean of its divisors is an integer number (1523491101720).

Almost surely, 238813858610805 is an apocalyptic number.

It is an amenable number.

38813858610805 is a deficient number, since it is larger than the sum of its proper divisors (9937856644235).

38813858610805 is a wasteful number, since it uses less digits than its factorization.

38813858610805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242301.

The product of its (nonzero) digits is 44236800, while the sum is 64.

The spelling of 38813858610805 in words is "thirty-eight trillion, eight hundred thirteen billion, eight hundred fifty-eight million, six hundred ten thousand, eight hundred five".

Divisors: 1 5 23 115 353 1765 4019 8119 20095 40595 92437 237901 462185 1189505 1418707 5471723 7093535 27358615 32630261 83979053 163151305 419895265 956124119 1931518219 4780620595 9657591095 21990854737 109954273685 337511814007 1687559070035 7762771722161 38813858610805