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2148744683 = 20707103769
BaseRepresentation
bin1000000000010011…
…0011110111101011
312112202020112120102
42000010303313223
513400034312213
6553115020015
7104151012521
oct20004636753
95482215512
102148744683
11a02a01758
124bb73a60b
13283226a77
14165538311
15c8995158
hex80133deb

2148744683 has 4 divisors (see below), whose sum is σ = 2148869160. Its totient is φ = 2148620208.

The previous prime is 2148744671. The next prime is 2148744737. The reversal of 2148744683 is 3864478412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2148744683 - 24 = 2148744667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148744613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31178 + ... + 72591.

It is an arithmetic number, because the mean of its divisors is an integer number (537217290).

Almost surely, 22148744683 is an apocalyptic number.

2148744683 is a deficient number, since it is larger than the sum of its proper divisors (124477).

2148744683 is a wasteful number, since it uses less digits than its factorization.

2148744683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124476.

The product of its digits is 1032192, while the sum is 47.

The square root of 2148744683 is about 46354.5540696920. The cubic root of 2148744683 is about 1290.4116393587.

The spelling of 2148744683 in words is "two billion, one hundred forty-eight million, seven hundred forty-four thousand, six hundred eighty-three".

Divisors: 1 20707 103769 2148744683