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2120788473 = 32947518657
BaseRepresentation
bin111111001101000…
…1010100111111001
312110210122012212020
41332122022213321
513320410212343
6550235505053
7103361255526
oct17632124771
95423565766
102120788473
11999147851
124b22b8189
1327a4b912b
1416193c14d
15c62c1b83
hex7e68a9f9

2120788473 has 16 divisors (see below), whose sum is σ = 2987470080. Its totient is φ = 1336057856.

The previous prime is 2120788463. The next prime is 2120788511. The reversal of 2120788473 is 3748870212.

It is a cyclic number.

It is not a de Polignac number, because 2120788473 - 24 = 2120788457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120788463) 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 15 ways as a sum of consecutive naturals, for example, 255240 + ... + 263417.

It is an arithmetic number, because the mean of its divisors is an integer number (186716880).

Almost surely, 22120788473 is an apocalyptic number.

It is an amenable number.

2120788473 is a deficient number, since it is larger than the sum of its proper divisors (866681607).

2120788473 is a wasteful number, since it uses less digits than its factorization.

2120788473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518736.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 2120788473 is about 46052.0192065451. The cubic root of 2120788473 is about 1284.7908985663.

The spelling of 2120788473 in words is "two billion, one hundred twenty million, seven hundred eighty-eight thousand, four hundred seventy-three".

Divisors: 1 3 29 47 87 141 1363 4089 518657 1555971 15041053 24376879 45123159 73130637 706929491 2120788473