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207380645143 = 71721943271463
BaseRepresentation
bin1100000100100011011…
…0011000010100010111
3201211021201021022020221
43001020312120110113
511344203421121033
6235134102535211
720661041253610
oct3011066302427
9654251238227
10207380645143
117aa49a71131
1234237437507
131672c44ab19
14a074404c07
1555db3cc12d
hex3048d98517

207380645143 has 96 divisors (see below), whose sum is σ = 272770826240. Its totient is φ = 153903214080.

The previous prime is 207380645107. The next prime is 207380645207. The reversal of 207380645143 is 341546083702.

It is not a de Polignac number, because 207380645143 - 237 = 69941691671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 207380645143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207380645743) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 447906130 + ... + 447906592.

Almost surely, 2207380645143 is an apocalyptic number.

207380645143 is a deficient number, since it is larger than the sum of its proper divisors (65390181097).

207380645143 is a wasteful number, since it uses less digits than its factorization.

207380645143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 207380645143 in words is "two hundred seven billion, three hundred eighty million, six hundred forty-five thousand, one hundred forty-three".

Divisors: 1 7 17 19 43 119 133 271 289 301 323 463 731 817 1897 2023 2261 3241 4607 5117 5149 5491 5719 7871 8797 11653 12427 13889 19909 32249 36043 38437 55097 61579 78319 81571 86989 87533 97223 125473 133807 139363 149549 198101 221407 236113 338453 378271 548233 612731 878311 936649 1046843 1386707 1488061 1549849 1652791 2133041 2369171 2383987 2542333 2647897 3367717 3763919 5395339 5753701 6430607 10416427 14931287 16687909 17796331 23574019 26347433 36261697 37767373 40275907 40527779 45014249 63986623 91720763 102511441 109320319 253831879 283694453 447906361 642045341 688972243 717580087 765242233 1559252971 1742694497 4822805701 10914770797 12198861479 29625806449 207380645143