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7849438052 = 221962359513
BaseRepresentation
bin1110100111101110…
…01110101101100100
3202021001002202201212
413103313032231210
5112033424004202
63334520410552
7365342060021
oct72367165544
922231082655
107849438052
113368891a95
121630916a58
139812a8501
145466b4548
1530e1a9652
hex1d3dceb64

7849438052 has 6 divisors (see below), whose sum is σ = 13736516598. Its totient is φ = 3924719024.

The previous prime is 7849438039. The next prime is 7849438123. The reversal of 7849438052 is 2508349487.

It can be written as a sum of positive squares in only one way, i.e., 4869806656 + 2979631396 = 69784^2 + 54586^2 .

It is a super-2 number, since 2×78494380522 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 981179753 + ... + 981179760.

It is an arithmetic number, because the mean of its divisors is an integer number (2289419433).

Almost surely, 27849438052 is an apocalyptic number.

It is an amenable number.

7849438052 is a deficient number, since it is larger than the sum of its proper divisors (5887078546).

7849438052 is a wasteful number, since it uses less digits than its factorization.

7849438052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962359517 (or 1962359515 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The square root of 7849438052 is about 88597.0544205619. The cubic root of 7849438052 is about 1987.3736260879.

The spelling of 7849438052 in words is "seven billion, eight hundred forty-nine million, four hundred thirty-eight thousand, fifty-two".

Divisors: 1 2 4 1962359513 3924719026 7849438052