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1020729299 = 7119772977
BaseRepresentation
bin111100110101110…
…001011111010011
32122010200102100212
4330311301133103
54042301314144
6245141434335
734203025112
oct7465613723
92563612325
101020729299
114841a2037
12245a0b9ab
13133617545
14997c5c79
155e92849e
hex3cd717d3

1020729299 has 8 divisors (see below), whose sum is σ = 1040374368. Its totient is φ = 1001230720.

The previous prime is 1020729247. The next prime is 1020729319. The reversal of 1020729299 is 9929270201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1020729299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020726299) 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, 22502 + ... + 50475.

It is an arithmetic number, because the mean of its divisors is an integer number (130046796).

Almost surely, 21020729299 is an apocalyptic number.

1020729299 is a deficient number, since it is larger than the sum of its proper divisors (19645069).

1020729299 is an equidigital number, since it uses as much as digits as its factorization.

1020729299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73245.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1020729299 is about 31948.8544239070. The cubic root of 1020729299 is about 1006.8625638208.

The spelling of 1020729299 in words is "one billion, twenty million, seven hundred twenty-nine thousand, two hundred ninety-nine".

Divisors: 1 71 197 13987 72977 5181367 14376469 1020729299