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80403475 = 523216139
BaseRepresentation
bin1001100101011…
…01110000010011
312121021220211111
410302231300103
5131040402400
611551154151
71664263315
oct462556023
9177256744
1080403475
1141427359
1222b15957
1313871c29
14a96d7b5
1570d33ba
hex4cadc13

80403475 has 6 divisors (see below), whose sum is σ = 99700340. Its totient is φ = 64322760.

The previous prime is 80403473. The next prime is 80403487. The reversal of 80403475 is 57430408.

It is not a de Polignac number, because 80403475 - 21 = 80403473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80403473) 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 in 5 ways as a sum of consecutive naturals, for example, 1608045 + ... + 1608094.

Almost surely, 280403475 is an apocalyptic number.

80403475 is a deficient number, since it is larger than the sum of its proper divisors (19296865).

80403475 is a wasteful number, since it uses less digits than its factorization.

80403475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216149 (or 3216144 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 80403475 is about 8966.7984810633. The cubic root of 80403475 is about 431.6101073928.

The spelling of 80403475 in words is "eighty million, four hundred three thousand, four hundred seventy-five".

Divisors: 1 5 25 3216139 16080695 80403475