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38811653270021 = 193795389758821
BaseRepresentation
bin10001101001100100010101…
…10011100110101000000101
312002102100122211220100120102
420310302022303212220011
520041342231214120041
6214313454413413445
711114022643356602
oct1064621263465005
9162370584810512
1038811653270021
1111403a254a9255
124429b6019a285
131886c00364908
149826cb9136a9
154748a811209b
hex234c8ace6a05

38811653270021 has 8 divisors (see below), whose sum is σ = 40962167047200. Its totient is φ = 36671919011280.

The previous prime is 38811653270003. The next prime is 38811653270029. The reversal of 38811653270021 is 12007235611883.

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 38811653270021 - 242 = 34413606758917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38811653270029) 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, 2694872210 + ... + 2694886611.

It is an arithmetic number, because the mean of its divisors is an integer number (5120270880900).

Almost surely, 238811653270021 is an apocalyptic number.

It is an amenable number.

38811653270021 is a deficient number, since it is larger than the sum of its proper divisors (2150513777179).

38811653270021 is a wasteful number, since it uses less digits than its factorization.

38811653270021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5389759219.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 38811653270021 in words is "thirty-eight trillion, eight hundred eleven billion, six hundred fifty-three million, two hundred seventy thousand, twenty-one".

Divisors: 1 19 379 7201 5389758821 102405417599 2042718593159 38811653270021