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20952706 = 219551387
BaseRepresentation
bin100111111101…
…1011010000010
31110102111201011
41033323122002
520330441311
62025031134
7343044415
oct117733202
943374634
1020952706
1110911095
1270254aa
134457c68
142ad5b7c
151c8d321
hex13fb682

20952706 has 8 divisors (see below), whose sum is σ = 33083280. Its totient is φ = 9924948.

The previous prime is 20952697. The next prime is 20952719. The reversal of 20952706 is 60725902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275656 + ... + 275731.

It is an arithmetic number, because the mean of its divisors is an integer number (4135410).

Almost surely, 220952706 is an apocalyptic number.

20952706 is a deficient number, since it is larger than the sum of its proper divisors (12130574).

20952706 is a wasteful number, since it uses less digits than its factorization.

20952706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551408.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 20952706 is about 4577.4125879147. The cubic root of 20952706 is about 275.6851499646.

The spelling of 20952706 in words is "twenty million, nine hundred fifty-two thousand, seven hundred six".

Divisors: 1 2 19 38 551387 1102774 10476353 20952706