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20960346 = 2311228871
BaseRepresentation
bin100111111110…
…1010001011010
31110102220012010
41033331101122
520331212341
62025130350
7343105611
oct117752132
943386163
1020960346
1110916900
1270299b6
13445b594
142ad8878
151c90716
hex13fd45a

20960346 has 24 divisors (see below), whose sum is σ = 46079712. Its totient is φ = 6351400.

The previous prime is 20960339. The next prime is 20960353. The reversal of 20960346 is 64306902.

It is an interprime number because it is at equal distance from previous prime (20960339) and next prime (20960353).

It is a super-2 number, since 2×209603462 = 878672208879432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13710 + ... + 15161.

It is an arithmetic number, because the mean of its divisors is an integer number (1919988).

Almost surely, 220960346 is an apocalyptic number.

20960346 is an abundant number, since it is smaller than the sum of its proper divisors (25119366).

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

20960346 is a wasteful number, since it uses less digits than its factorization.

20960346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28898 (or 28887 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 20960346 is about 4578.2470444483. The cubic root of 20960346 is about 275.7186536499.

The spelling of 20960346 in words is "twenty million, nine hundred sixty thousand, three hundred forty-six".

Divisors: 1 2 3 6 11 22 33 66 121 242 363 726 28871 57742 86613 173226 317581 635162 952743 1905486 3493391 6986782 10480173 20960346