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38217111636001 = 174213912
BaseRepresentation
bin10001011000010000111010…
…10111010000100000100001
312000022112001012221000120011
420230020131113100200201
520002122121034323001
6213140410531044521
711023044440021164
oct1054103527204041
9160275035830504
1038217111636001
11111a4871222921
124352895440741
131842b2050187c
14961a0a569adb
154641ac58cd51
hex22c21d5d0821

38217111636001 has 15 divisors (see below), whose sum is σ = 40607550862293. Its totient is φ = 35967364741920.

The previous prime is 38217111635957. The next prime is 38217111636007. The reversal of 38217111636001 is 10063611171283.

The square root of 38217111636001 is 6181999.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 11860798490401 + 26356313145600 = 3443951^2 + 5133840^2 .

It is not a de Polignac number, because 38217111636001 - 27 = 38217111635873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38217111636007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1786587016 + ... + 1786608406.

Almost surely, 238217111636001 is an apocalyptic number.

38217111636001 is the 6181999-th square number.

38217111636001 is the 3091000-th centered octagonal number.

It is an amenable number.

38217111636001 is a deficient number, since it is larger than the sum of its proper divisors (2390439226292).

38217111636001 is an frugal number, since it uses more digits than its factorization.

38217111636001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42850 (or 21408 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 38217111636001 in words is "thirty-eight trillion, two hundred seventeen billion, one hundred eleven million, six hundred thirty-six thousand, one".

Divisors: 1 17 289 4913 21391 83521 363647 6181999 105093983 457574881 1786597711 7778772977 132239140609 2248065390353 38217111636001