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65838044 = 2223477013
BaseRepresentation
bin1111101100100…
…1101111011100
311120212220211002
43323021233130
5113323304134
610311045432
71426420436
oct373115734
9146786732
1065838044
1134189108
121a070878
131084232c
148a5b656
155ba787e
hex3ec9bdc

65838044 has 12 divisors (see below), whose sum is σ = 115282104. Its totient is φ = 32900304.

The previous prime is 65838037. The next prime is 65838049. The reversal of 65838044 is 44083856.

It is a happy number.

It is a super-4 number, since 4×658380444 (a number of 32 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65837989 and 65838007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65838049) 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 3 ways as a sum of consecutive naturals, for example, 5882 + ... + 12894.

It is an arithmetic number, because the mean of its divisors is an integer number (9606842).

Almost surely, 265838044 is an apocalyptic number.

It is an amenable number.

65838044 is a deficient number, since it is larger than the sum of its proper divisors (49444060).

65838044 is a wasteful number, since it uses less digits than its factorization.

65838044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9364 (or 9362 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 65838044 is about 8114.0645794817. The cubic root of 65838044 is about 403.7931742052.

The spelling of 65838044 in words is "sixty-five million, eight hundred thirty-eight thousand, forty-four".

Divisors: 1 2 4 2347 4694 7013 9388 14026 28052 16459511 32919022 65838044