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1014981994 = 213178921821
BaseRepresentation
bin111100011111110…
…110010101101010
32121201212102112201
4330133312111222
54034313410434
6244414330414
734103130115
oct7437662552
92551772481
101014981994
11480a26aa4
12243ab9a0a
13132384580
1498b2b57c
155e190614
hex3c7f656a

1014981994 has 16 divisors (see below), whose sum is σ = 1640577960. Its totient is φ = 468169920.

The previous prime is 1014981977. The next prime is 1014981997. The reversal of 1014981994 is 4991894101.

It can be written as a sum of positive squares in 4 ways, for example, as 944640225 + 70341769 = 30735^2 + 8387^2 .

It is not an unprimeable number, because it can be changed into a prime (1014981997) 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 7 ways as a sum of consecutive naturals, for example, 35604 + ... + 57424.

Almost surely, 21014981994 is an apocalyptic number.

1014981994 is a deficient number, since it is larger than the sum of its proper divisors (625595966).

1014981994 is a wasteful number, since it uses less digits than its factorization.

1014981994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23625.

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 1014981994 is about 31858.7820545607. The cubic root of 1014981994 is about 1004.9692635171.

The spelling of 1014981994 in words is "one billion, fourteen million, nine hundred eighty-one thousand, nine hundred ninety-four".

Divisors: 1 2 13 26 1789 3578 21821 23257 43642 46514 283673 567346 39037769 78075538 507490997 1014981994