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69480447 = 323243781
BaseRepresentation
bin1000010010000…
…10111111111111
311211201222020220
410021002333333
5120241333242
610521112423
71502400621
oct411027777
9154658226
1069480447
1136246763
121b328713
13115191ba
149328c11
156176bec
hex4242fff

69480447 has 12 divisors (see below), whose sum is σ = 96845784. Its totient is φ = 44305360.

The previous prime is 69480419. The next prime is 69480449. The reversal of 69480447 is 74408496.

It is not a de Polignac number, because 69480447 - 27 = 69480319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69480399 and 69480408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69480449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20304 + ... + 23477.

It is an arithmetic number, because the mean of its divisors is an integer number (8070482).

Almost surely, 269480447 is an apocalyptic number.

69480447 is a deficient number, since it is larger than the sum of its proper divisors (27365337).

69480447 is a wasteful number, since it uses less digits than its factorization.

69480447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43830 (or 43807 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 69480447 is about 8335.4932067635. The cubic root of 69480447 is about 411.1063653999.

The spelling of 69480447 in words is "sixty-nine million, four hundred eighty thousand, four hundred forty-seven".

Divisors: 1 3 23 69 529 1587 43781 131343 1006963 3020889 23160149 69480447