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206871412 = 22116017823
BaseRepresentation
bin11000101010010…
…01101101110100
3112102021011020011
430111021231310
5410424341122
632305550004
75061243436
oct1425115564
9472234204
10206871412
11a6856610
1259345304
1333b21b27
141d690656
1513265377
hexc549b74

206871412 has 24 divisors (see below), whose sum is σ = 395644032. Its totient is φ = 93864000.

The previous prime is 206871389. The next prime is 206871421. The reversal of 206871412 is 214178602.

206871412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2068714122 = 85591562205747488, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22533 + ... + 30355.

It is an arithmetic number, because the mean of its divisors is an integer number (16485168).

Almost surely, 2206871412 is an apocalyptic number.

206871412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206871412 is a deficient number, since it is larger than the sum of its proper divisors (188772620).

206871412 is a wasteful number, since it uses less digits than its factorization.

206871412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8439 (or 8437 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 206871412 is about 14383.0251338166. The cubic root of 206871412 is about 591.4256550712.

The spelling of 206871412 in words is "two hundred six million, eight hundred seventy-one thousand, four hundred twelve".

Divisors: 1 2 4 11 22 44 601 1202 2404 6611 7823 13222 15646 26444 31292 86053 172106 344212 4701623 9403246 18806492 51717853 103435706 206871412