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69485957 = 547127031
BaseRepresentation
bin1000010010001…
…00010110000101
311211202020210222
410021010112011
5120242022312
610521154125
71502422652
oct411042605
9154666728
1069485957
113624a912
121b32b945
131151b868
14932ac29
156178672
hex4244585

69485957 has 4 divisors (see below), whose sum is σ = 69613536. Its totient is φ = 69358380.

The previous prime is 69485917. The next prime is 69485971. The reversal of 69485957 is 75958496.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69485957 - 212 = 69481861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69485899 and 69485908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69485917) 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, 62969 + ... + 64062.

It is an arithmetic number, because the mean of its divisors is an integer number (17403384).

Almost surely, 269485957 is an apocalyptic number.

It is an amenable number.

69485957 is a deficient number, since it is larger than the sum of its proper divisors (127579).

69485957 is a wasteful number, since it uses less digits than its factorization.

69485957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127578.

The product of its digits is 2721600, while the sum is 53.

The square root of 69485957 is about 8335.8237145468. The cubic root of 69485957 is about 411.1172324197.

The spelling of 69485957 in words is "sixty-nine million, four hundred eighty-five thousand, nine hundred fifty-seven".

Divisors: 1 547 127031 69485957