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207128894156 = 224710916362011
BaseRepresentation
bin1100000011100111011…
…0000001101011001100
3201210122011120000211022
43000321312001223030
511343144444103111
6235053111013312
720651563356662
oct3007166015314
9653564500738
10207128894156
117a92a951968
123418706a238
13166bc244442
14a04cbd0c32
1555c424e2db
hex3039d81acc

207128894156 has 48 divisors (see below), whose sum is σ = 375882017280. Its totient is φ = 99813280320.

The previous prime is 207128894143. The next prime is 207128894171. The reversal of 207128894156 is 651498821702.

207128894156 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 207128894098 and 207128894107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3309191 + ... + 3371201.

It is an arithmetic number, because the mean of its divisors is an integer number (7830875360).

Almost surely, 2207128894156 is an apocalyptic number.

It is an amenable number.

207128894156 is a deficient number, since it is larger than the sum of its proper divisors (168753123124).

207128894156 is a wasteful number, since it uses less digits than its factorization.

207128894156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62334 (or 62332 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 207128894156 in words is "two hundred seven billion, one hundred twenty-eight million, eight hundred ninety-four thousand, one hundred fifty-six".

Divisors: 1 2 4 47 94 109 163 188 218 326 436 652 5123 7661 10246 15322 17767 20492 30644 35534 62011 71068 124022 248044 835049 1670098 2914517 3340196 5829034 6759199 10107793 11658068 13518398 20215586 27036796 40431172 317682353 475066271 635364706 950132542 1101749437 1270729412 1900265084 2203498874 4406997748 51782223539 103564447078 207128894156