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69485471 = 116316861
BaseRepresentation
bin1000010010001…
…00001110011111
311211202020010222
410021010032133
5120242013341
610521151555
71502421356
oct411041637
9154666128
1069485471
113624a510
121b32b5bb
131151b583
14932a99d
15617844b
hex424439f

69485471 has 4 divisors (see below), whose sum is σ = 75802344. Its totient is φ = 63168600.

The previous prime is 69485467. The next prime is 69485483. The reversal of 69485471 is 17458496.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 69485471 - 22 = 69485467 is a prime.

It is a super-3 number, since 3×694854713 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69485431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158420 + ... + 3158441.

It is an arithmetic number, because the mean of its divisors is an integer number (18950586).

Almost surely, 269485471 is an apocalyptic number.

69485471 is a deficient number, since it is larger than the sum of its proper divisors (6316873).

69485471 is a wasteful number, since it uses less digits than its factorization.

69485471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316872.

The product of its digits is 241920, while the sum is 44.

The square root of 69485471 is about 8335.7945632075. The cubic root of 69485471 is about 411.1162739362.

The spelling of 69485471 in words is "sixty-nine million, four hundred eighty-five thousand, four hundred seventy-one".

Divisors: 1 11 6316861 69485471