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17428573031 = 19987580769
BaseRepresentation
bin10000001110110100…
…101110101101100111
31122222121221020120212
4100032310232231213
5241143203314111
612001230450035
71154616266162
oct201664565547
948877836525
1017428573031
117433a7a971
12346496391b
131849a2a30c
14bb49a0ad9
156c013198b
hex40ed2eb67

17428573031 has 4 divisors (see below), whose sum is σ = 17516154000. Its totient is φ = 17340992064.

The previous prime is 17428573003. The next prime is 17428573039. The reversal of 17428573031 is 13037582471.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13037582471 = 47992716729.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-17428573031 is a prime.

It is a super-2 number, since 2×174285730312 (a number of 21 digits) contains 22 as substring.

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 17428573031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17428573039) 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 3 ways as a sum of consecutive naturals, for example, 43790186 + ... + 43790583.

It is an arithmetic number, because the mean of its divisors is an integer number (4379038500).

Almost surely, 217428573031 is an apocalyptic number.

17428573031 is a deficient number, since it is larger than the sum of its proper divisors (87580969).

17428573031 is an equidigital number, since it uses as much as digits as its factorization.

17428573031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87580968.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 17428573031 in words is "seventeen billion, four hundred twenty-eight million, five hundred seventy-three thousand, thirty-one".

Divisors: 1 199 87580769 17428573031