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69485771 = 618912799
BaseRepresentation
bin1000010010001…
…00010011001011
311211202020120002
410021010103023
5120242021041
610521153215
71502422265
oct411042313
9154666502
1069485771
113624a763
121b32b80b
131151b754
14932ab35
15617859b
hex42444cb

69485771 has 8 divisors (see below), whose sum is σ = 71424000. Its totient is φ = 67573440.

The previous prime is 69485753. The next prime is 69485789. The reversal of 69485771 is 17758496.

It is an interprime number because it is at equal distance from previous prime (69485753) and next prime (69485789).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69485771 - 210 = 69484747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69485671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971 + ... + 11828.

It is an arithmetic number, because the mean of its divisors is an integer number (8928000).

Almost surely, 269485771 is an apocalyptic number.

69485771 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

69485771 is a deficient number, since it is larger than the sum of its proper divisors (1938229).

69485771 is a wasteful number, since it uses less digits than its factorization.

69485771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12949.

The product of its digits is 423360, while the sum is 47.

The square root of 69485771 is about 8335.8125578734. The cubic root of 69485771 is about 411.1168655932.

The spelling of 69485771 in words is "sixty-nine million, four hundred eighty-five thousand, seven hundred seventy-one".

Divisors: 1 61 89 5429 12799 780739 1139111 69485771