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18570702307 = 163421727017
BaseRepresentation
bin10001010010111001…
…100110110111100011
31202221020001102102011
4101102321212313203
5301013044433212
612310430333351
71225125236143
oct212271466743
952836042364
1018570702307
11796a74a563
12372335a257
13199c53ba61
14c82548923
1573a53a4a7
hex452e66de3

18570702307 has 8 divisors (see below), whose sum is σ = 18689755536. Its totient is φ = 18451711872.

The previous prime is 18570702289. The next prime is 18570702313. The reversal of 18570702307 is 70320707581.

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

It is a cyclic number.

It is not a de Polignac number, because 18570702307 - 215 = 18570669539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18570702307.

It is not an unprimeable number, because it can be changed into a prime (18570702407) 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, 673863 + ... + 700879.

It is an arithmetic number, because the mean of its divisors is an integer number (2336219442).

Almost surely, 218570702307 is an apocalyptic number.

18570702307 is a deficient number, since it is larger than the sum of its proper divisors (119053229).

18570702307 is a wasteful number, since it uses less digits than its factorization.

18570702307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31397.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 18570702307 in words is "eighteen billion, five hundred seventy million, seven hundred two thousand, three hundred seven".

Divisors: 1 163 4217 27017 687371 4403771 113930689 18570702307