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69845444 = 2219919019
BaseRepresentation
bin1000010100111…
…00000111000100
311212102111221022
410022130013010
5120340023234
610533010312
71505451014
oct412340704
9155374838
1069845444
1136475a09
121b483998
1311616386
1493c1c44
1561e9e2e
hex429c1c4

69845444 has 12 divisors (see below), whose sum is σ = 128662800. Its totient is φ = 33084648.

The previous prime is 69845437. The next prime is 69845471. The reversal of 69845444 is 44454896.

It is a junction number, because it is equal to n+sod(n) for n = 69845395 and 69845404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459434 + ... + 459585.

It is an arithmetic number, because the mean of its divisors is an integer number (10721900).

Almost surely, 269845444 is an apocalyptic number.

It is an amenable number.

69845444 is a deficient number, since it is larger than the sum of its proper divisors (58817356).

69845444 is a wasteful number, since it uses less digits than its factorization.

69845444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919042 (or 919040 counting only the distinct ones).

The product of its digits is 552960, while the sum is 44.

The square root of 69845444 is about 8357.3586736480. The cubic root of 69845444 is about 411.8249877218.

The spelling of 69845444 in words is "sixty-nine million, eight hundred forty-five thousand, four hundred forty-four".

Divisors: 1 2 4 19 38 76 919019 1838038 3676076 17461361 34922722 69845444