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1768434968 = 23221054371
BaseRepresentation
bin110100101101000…
…0010110100011000
311120020121210201102
41221122002310120
512110204404333
6451251410532
761552310036
oct15132026430
94506553642
101768434968
11828265403
124142b3a48
132224ba931
1412ac1b556
15a53c0ae8
hex69682d18

1768434968 has 8 divisors (see below), whose sum is σ = 3315815580. Its totient is φ = 884217480.

The previous prime is 1768434961. The next prime is 1768434973. The reversal of 1768434968 is 8694348671.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×17684349682 = 6254724472090322048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1768434961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110527178 + ... + 110527193.

Almost surely, 21768434968 is an apocalyptic number.

It is an amenable number.

1768434968 is a deficient number, since it is larger than the sum of its proper divisors (1547380612).

1768434968 is a wasteful number, since it uses less digits than its factorization.

1768434968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221054377 (or 221054373 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 56.

The square root of 1768434968 is about 42052.7640946466. The cubic root of 1768434968 is about 1209.2878736656.

The spelling of 1768434968 in words is "one billion, seven hundred sixty-eight million, four hundred thirty-four thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 221054371 442108742 884217484 1768434968