Search a number
-
+
69885997 = 1731132611
BaseRepresentation
bin1000010101001…
…10000000101101
311212111120120021
410022212000231
5120342322442
610533522141
71506010156
oct412460055
9155446507
1069885997
11364a3425
121b4a3351
131162b97c
1493d292d
156206e67
hex42a602d

69885997 has 8 divisors (see below), whose sum is σ = 76384512. Its totient is φ = 63652800.

The previous prime is 69885979. The next prime is 69886021. The reversal of 69885997 is 79958896.

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 69885997 - 27 = 69885869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69885967) 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, 65779 + ... + 66832.

It is an arithmetic number, because the mean of its divisors is an integer number (9548064).

Almost surely, 269885997 is an apocalyptic number.

It is an amenable number.

69885997 is a deficient number, since it is larger than the sum of its proper divisors (6498515).

69885997 is a wasteful number, since it uses less digits than its factorization.

69885997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132659.

The product of its digits is 9797760, while the sum is 61.

The square root of 69885997 is about 8359.7845067920. The cubic root of 69885997 is about 411.9046756089.

The spelling of 69885997 in words is "sixty-nine million, eight hundred eighty-five thousand, nine hundred ninety-seven".

Divisors: 1 17 31 527 132611 2254387 4110941 69885997