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69494481 = 3271103087
BaseRepresentation
bin1000010010001…
…10011011010001
311211202200111200
410021012123101
5120242310411
610521301413
71502456550
oct411063321
9154680450
1069494481
1136256261
121b334869
13115226c4
14932dd97
15617ae56
hex42466d1

69494481 has 12 divisors (see below), whose sum is σ = 114721152. Its totient is φ = 39711096.

The previous prime is 69494471. The next prime is 69494531. The reversal of 69494481 is 18449496.

It is not a de Polignac number, because 69494481 - 25 = 69494449 is a prime.

It is a super-2 number, since 2×694944812 = 9658965778918722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69494441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 551481 + ... + 551606.

It is an arithmetic number, because the mean of its divisors is an integer number (9560096).

Almost surely, 269494481 is an apocalyptic number.

It is an amenable number.

69494481 is a deficient number, since it is larger than the sum of its proper divisors (45226671).

69494481 is a wasteful number, since it uses less digits than its factorization.

69494481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103100 (or 1103097 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 69494481 is about 8336.3349860715. The cubic root of 69494481 is about 411.1340426269.

The spelling of 69494481 in words is "sixty-nine million, four hundred ninety-four thousand, four hundred eighty-one".

Divisors: 1 3 7 9 21 63 1103087 3309261 7721609 9927783 23164827 69494481