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2938646913 = 31997531497
BaseRepresentation
bin1010111100101000…
…0011000110000001
321120210120201201120
42233022003012001
522004243200123
61203333222453
7132552041466
oct25712030601
97523521646
102938646913
111278875a14
126a0191a29
1337aa82737
141dc3d566d
15122ec52e3
hexaf283181

2938646913 has 16 divisors (see below), whose sum is σ = 4166944320. Its totient is φ = 1836850176.

The previous prime is 2938646897. The next prime is 2938646923. The reversal of 2938646913 is 3196468392.

It is not a de Polignac number, because 2938646913 - 24 = 2938646897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2938646923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260220 + ... + 271277.

It is an arithmetic number, because the mean of its divisors is an integer number (260434020).

Almost surely, 22938646913 is an apocalyptic number.

It is an amenable number.

2938646913 is a deficient number, since it is larger than the sum of its proper divisors (1228297407).

2938646913 is a wasteful number, since it uses less digits than its factorization.

2938646913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531616.

The product of its digits is 1679616, while the sum is 51.

The square root of 2938646913 is about 54209.2880694812. The cubic root of 2938646913 is about 1432.3499453275.

The spelling of 2938646913 in words is "two billion, nine hundred thirty-eight million, six hundred forty-six thousand, nine hundred thirteen".

Divisors: 1 3 19 57 97 291 1843 5529 531497 1594491 10098443 30295329 51555209 154665627 979548971 2938646913