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1020031093 = 17193157991
BaseRepresentation
bin111100110011000…
…111000001110101
32122002100221121101
4330303013001311
54042111443333
6245114450101
734164056404
oct7463070165
92562327541
101020031093
11483865504
12245733931
131334317c3
149968363b
155e83b67d
hex3ccc7075

1020031093 has 8 divisors (see below), whose sum is σ = 1136877120. Its totient is φ = 909501120.

The previous prime is 1020031091. The next prime is 1020031109. The reversal of 1020031093 is 3901300201.

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

It is not a de Polignac number, because 1020031093 - 21 = 1020031091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 1020031093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020031091) 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, 1578673 + ... + 1579318.

It is an arithmetic number, because the mean of its divisors is an integer number (142109640).

Almost surely, 21020031093 is an apocalyptic number.

It is an amenable number.

1020031093 is a deficient number, since it is larger than the sum of its proper divisors (116846027).

1020031093 is a wasteful number, since it uses less digits than its factorization.

1020031093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158027.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1020031093 is about 31937.9256214301. The cubic root of 1020031093 is about 1006.6329378614.

Adding to 1020031093 its reverse (3901300201), we get a palindrome (4921331294).

The spelling of 1020031093 in words is "one billion, twenty million, thirty-one thousand, ninety-three".

Divisors: 1 17 19 323 3157991 53685847 60001829 1020031093