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3047634021 = 32354780747
BaseRepresentation
bin1011010110100111…
…0011010001100101
321212101122211221010
42311221303101211
522220143242041
61222225212433
7135344314245
oct26551632145
97771584833
103047634021
111324345603
12710791119
13397521a53
1420ca85b25
1512c852a16
hexb5a73465

3047634021 has 16 divisors (see below), whose sum is σ = 4247990784. Its totient is φ = 1939841904.

The previous prime is 3047633999. The next prime is 3047634071. The reversal of 3047634021 is 1204367403.

It is not a de Polignac number, because 3047634021 - 25 = 3047633989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3047634021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3047634071) 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 15 ways as a sum of consecutive naturals, for example, 2631 + ... + 78116.

It is an arithmetic number, because the mean of its divisors is an integer number (265499424).

Almost surely, 23047634021 is an apocalyptic number.

It is an amenable number.

3047634021 is a deficient number, since it is larger than the sum of its proper divisors (1200356763).

3047634021 is a wasteful number, since it uses less digits than its factorization.

3047634021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81320.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 3047634021 is about 55205.3803627871. The cubic root of 3047634021 is about 1449.8428717567.

The spelling of 3047634021 in words is "three billion, forty-seven million, six hundred thirty-four thousand, twenty-one".

Divisors: 1 3 23 69 547 1641 12581 37743 80747 242241 1857181 5571543 44168609 132505827 1015878007 3047634021