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80202080450 = 2521604041609
BaseRepresentation
bin100101010110001101…
…0101010000011000010
321200000102100211021002
41022230122222003002
52303223213033300
6100502212532002
75536324302302
oct1125432520302
9250012324232
1080202080450
1131016a90118
1213663621002
137741c6a04b
143c4b93d602
1521460d95d5
hex12ac6aa0c2

80202080450 has 12 divisors (see below), whose sum is σ = 149175869730. Its totient is φ = 32080832160.

The previous prime is 80202080443. The next prime is 80202080461. The reversal of 80202080450 is 5408020208.

It can be written as a sum of positive squares in 3 ways, for example, as 71033443441 + 9168637009 = 266521^2 + 95753^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 802020755 + ... + 802020854.

Almost surely, 280202080450 is an apocalyptic number.

80202080450 is a deficient number, since it is larger than the sum of its proper divisors (68973789280).

80202080450 is a wasteful number, since it uses less digits than its factorization.

80202080450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604041621 (or 1604041616 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The spelling of 80202080450 in words is "eighty billion, two hundred two million, eighty thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 1604041609 3208083218 8020208045 16040416090 40101040225 80202080450