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1020350345 = 5754153887
BaseRepresentation
bin111100110100010…
…100111110001001
32122002222011112112
4330310110332021
54042202202340
6245125352105
734166556230
oct7464247611
92562864475
101020350345
11483a63353
12245868635
13133513c01
1499727b17
155e8a1065
hex3cd14f89

1020350345 has 16 divisors (see below), whose sum is σ = 1401950208. Its totient is φ = 698362560.

The previous prime is 1020350327. The next prime is 1020350351. The reversal of 1020350345 is 5430530201.

It is not a de Polignac number, because 1020350345 - 26 = 1020350281 is a prime.

It is a super-2 number, since 2×10203503452 = 2082229653083238050, which 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 1020350345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8009 + ... + 45878.

It is an arithmetic number, because the mean of its divisors is an integer number (87621888).

Almost surely, 21020350345 is an apocalyptic number.

It is an amenable number.

1020350345 is a deficient number, since it is larger than the sum of its proper divisors (381599863).

1020350345 is an equidigital number, since it uses as much as digits as its factorization.

1020350345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54440.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1020350345 is about 31942.9232381759. The cubic root of 1020350345 is about 1006.7379464436.

Adding to 1020350345 its reverse (5430530201), we get a palindrome (6450880546).

The spelling of 1020350345 in words is "one billion, twenty million, three hundred fifty thousand, three hundred forty-five".

Divisors: 1 5 7 35 541 2705 3787 18935 53887 269435 377209 1886045 29152867 145764335 204070069 1020350345