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20941206 = 23111324407
BaseRepresentation
bin100111111100…
…0100110010110
31110101220221020
41033320212112
520330104311
62024502010
7342666036
oct117704626
943356836
1020941206
1110903490
12701a906
134452960
142ad18c6
151c89c06
hex13f8996

20941206 has 32 divisors (see below), whose sum is σ = 49206528. Its totient is φ = 5857440.

The previous prime is 20941199. The next prime is 20941231. The reversal of 20941206 is 60214902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11346 + ... + 13061.

It is an arithmetic number, because the mean of its divisors is an integer number (1537704).

Almost surely, 220941206 is an apocalyptic number.

20941206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20941206 is an abundant number, since it is smaller than the sum of its proper divisors (28265322).

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

20941206 is a wasteful number, since it uses less digits than its factorization.

20941206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24436.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20941206 is about 4576.1562473325. The cubic root of 20941206 is about 275.6347036654.

The spelling of 20941206 in words is "twenty million, nine hundred forty-one thousand, two hundred six".

Divisors: 1 2 3 6 11 13 22 26 33 39 66 78 143 286 429 858 24407 48814 73221 146442 268477 317291 536954 634582 805431 951873 1610862 1903746 3490201 6980402 10470603 20941206