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69490446 = 2347924179
BaseRepresentation
bin1000010010001…
…01011100001110
311211202110222020
410021011130032
5120242143241
610521231010
71502442024
oct411053416
9154673866
1069490446
1136253223
121b332466
131152090c
14932c714
156179b66
hex424570e

69490446 has 16 divisors (see below), whose sum is σ = 139276800. Its totient is φ = 23114168.

The previous prime is 69490439. The next prime is 69490481. The reversal of 69490446 is 64409496.

It is a junction number, because it is equal to n+sod(n) for n = 69490398 and 69490407.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9216 + ... + 14963.

It is an arithmetic number, because the mean of its divisors is an integer number (8704800).

Almost surely, 269490446 is an apocalyptic number.

69490446 is an abundant number, since it is smaller than the sum of its proper divisors (69786354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69490446 is a wasteful number, since it uses less digits than its factorization.

69490446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24663.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 69490446 is about 8336.0929697311. The cubic root of 69490446 is about 411.1260853621.

The spelling of 69490446 in words is "sixty-nine million, four hundred ninety thousand, four hundred forty-six".

Divisors: 1 2 3 6 479 958 1437 2874 24179 48358 72537 145074 11581741 23163482 34745223 69490446