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2120675946 = 2323131117307
BaseRepresentation
bin111111001100110…
…1111001001101010
312110210102111111120
41332121233021222
513320343112241
6550233240110
7103360306464
oct17631571152
95423374446
102120675946
11999080254
124b2263036
1327a479b4c
1416190d134
15c629d666
hex7e66f26a

2120675946 has 32 divisors (see below), whose sum is σ = 4459580928. Its totient is φ = 670990320.

The previous prime is 2120675939. The next prime is 2120675971. The reversal of 2120675946 is 6495760212.

It is a junction number, because it is equal to n+sod(n) for n = 2120675898 and 2120675907.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40576 + ... + 76731.

It is an arithmetic number, because the mean of its divisors is an integer number (139361904).

Almost surely, 22120675946 is an apocalyptic number.

2120675946 is an abundant number, since it is smaller than the sum of its proper divisors (2338904982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2120675946 is a wasteful number, since it uses less digits than its factorization.

2120675946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117466.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 2120675946 is about 46050.7974523786. The cubic root of 2120675946 is about 1284.7681749073.

The spelling of 2120675946 in words is "two billion, one hundred twenty million, six hundred seventy-five thousand, nine hundred forty-six".

Divisors: 1 2 3 6 23 46 69 131 138 262 393 786 3013 6026 9039 18078 117307 234614 351921 703842 2698061 5396122 8094183 15367217 16188366 30734434 46101651 92203302 353445991 706891982 1060337973 2120675946