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981042017 = 15122728621
BaseRepresentation
bin111010011110011…
…000001101100001
32112101000002122112
4322132120031201
54002121321032
6241203045105
733211501544
oct7236301541
92471002575
10981042017
1146385542a
12234670795
13128330147
149441485b
155b1d91b2
hex3a798361

981042017 has 8 divisors (see below), whose sum is σ = 991924032. Its totient is φ = 970218000.

The previous prime is 981041969. The next prime is 981042043. The reversal of 981042017 is 710240189.

981042017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-981042017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981042047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19967 + ... + 48587.

It is an arithmetic number, because the mean of its divisors is an integer number (123990504).

Almost surely, 2981042017 is an apocalyptic number.

It is an amenable number.

981042017 is a deficient number, since it is larger than the sum of its proper divisors (10882015).

981042017 is a wasteful number, since it uses less digits than its factorization.

981042017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28999.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 981042017 is about 31321.5902693334. The cubic root of 981042017 is about 993.6403124481.

The spelling of 981042017 in words is "nine hundred eighty-one million, forty-two thousand, seventeen".

Divisors: 1 151 227 28621 34277 4321771 6496967 981042017