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3816938749 = 131392112307
BaseRepresentation
bin1110001110000001…
…1101110011111101
3100212000020120121211
43203200131303331
530304114014444
61430430124421
7163405305211
oct34340356375
910760216554
103816938749
111689620638
128a6350711
1348aa18350
14282d00941
15175164c34
hexe381dcfd

3816938749 has 8 divisors (see below), whose sum is σ = 4140123680. Its totient is φ = 3497978736.

The previous prime is 3816938717. The next prime is 3816938777. The reversal of 3816938749 is 9478396183.

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 3816938749 - 25 = 3816938717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3816938693 and 3816938702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3816938449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054347 + ... + 1057960.

It is an arithmetic number, because the mean of its divisors is an integer number (517515460).

Almost surely, 23816938749 is an apocalyptic number.

It is an amenable number.

3816938749 is a deficient number, since it is larger than the sum of its proper divisors (323184931).

3816938749 is a wasteful number, since it uses less digits than its factorization.

3816938749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112459.

The product of its digits is 7838208, while the sum is 58.

The square root of 3816938749 is about 61781.3786589454. The cubic root of 3816938749 is about 1562.8059772747.

The spelling of 3816938749 in words is "three billion, eight hundred sixteen million, nine hundred thirty-eight thousand, seven hundred forty-nine".

Divisors: 1 13 139 1807 2112307 27459991 293610673 3816938749