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4145581969 = 43379254377
BaseRepresentation
bin1111011100011000…
…1000111110010001
3101200220122101100221
43313012020332101
531442232110334
61523210113041
7204505602544
oct36706107621
911626571327
104145581969
111838089101
1297841b781
13510b346a9
142b480c85b
15193e308b4
hexf7188f91

4145581969 has 8 divisors (see below), whose sum is σ = 4253200160. Its totient is φ = 4038473376.

The previous prime is 4145581967. The next prime is 4145581991. The reversal of 4145581969 is 9691855414.

4145581969 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4145581969 - 21 = 4145581967 is a prime.

It is a super-2 number, since 2×41455819692 = 34371699723395833922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4145581961) 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 7 ways as a sum of consecutive naturals, for example, 110892 + ... + 143485.

It is an arithmetic number, because the mean of its divisors is an integer number (531650020).

Almost surely, 24145581969 is an apocalyptic number.

It is an amenable number.

4145581969 is a deficient number, since it is larger than the sum of its proper divisors (107618191).

4145581969 is a wasteful number, since it uses less digits than its factorization.

4145581969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254799.

The product of its digits is 1555200, while the sum is 52.

The square root of 4145581969 is about 64386.1939316186. The cubic root of 4145581969 is about 1606.4301094870.

The spelling of 4145581969 in words is "four billion, one hundred forty-five million, five hundred eighty-one thousand, nine hundred sixty-nine".

Divisors: 1 43 379 16297 254377 10938211 96408883 4145581969