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20069480 = 2351792803
BaseRepresentation
bin100110010001…
…1110001101000
31101202122011002
41030203301220
520114210410
61554054132
7332405414
oct114436150
941678132
1020069480
1110368552
12687a348
134208c42
142945d44
151b667a5
hex1323c68

20069480 has 32 divisors (see below), whose sum is σ = 45424800. Its totient is φ = 7980096.

The previous prime is 20069473. The next prime is 20069507. The reversal of 20069480 is 8496002.

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, 5759 + ... + 8561.

It is an arithmetic number, because the mean of its divisors is an integer number (1419525).

Almost surely, 220069480 is an apocalyptic number.

20069480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20069480 is an abundant number, since it is smaller than the sum of its proper divisors (25355320).

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

20069480 is a wasteful number, since it uses less digits than its factorization.

20069480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993 (or 2989 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 20069480 is about 4479.8973202519. The cubic root of 20069480 is about 271.7557279267.

The spelling of 20069480 in words is "twenty million, sixty-nine thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 179 358 716 895 1432 1790 2803 3580 5606 7160 11212 14015 22424 28030 56060 112120 501737 1003474 2006948 2508685 4013896 5017370 10034740 20069480