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2020478670 = 232577343933
BaseRepresentation
bin111100001101110…
…0000111011001110
312012210212221200100
41320123200323032
513114220304140
6532253511530
7101032533240
oct17033407316
95183787610
102020478670
11947564591
124847a25a6
13262797612
141524aa090
15bc5aa530
hex786e0ece

2020478670 has 96 divisors (see below), whose sum is σ = 6086089152. Its totient is φ = 455486976.

The previous prime is 2020478657. The next prime is 2020478701. The reversal of 2020478670 is 768740202.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 24024 + ... + 67956.

It is an arithmetic number, because the mean of its divisors is an integer number (63396762).

Almost surely, 22020478670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2020478670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3043044576).

2020478670 is an abundant number, since it is smaller than the sum of its proper divisors (4065610482).

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

2020478670 is a wasteful number, since it uses less digits than its factorization.

2020478670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44026 (or 44023 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 2020478670 is about 44949.7349269159. The cubic root of 2020478670 is about 1264.2067068178.

It can be divided in two parts, 2020 and 478670, that added together give a triangular number (480690 = T980).

The spelling of 2020478670 in words is "two billion, twenty million, four hundred seventy-eight thousand, six hundred seventy".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 73 90 105 126 146 210 219 315 365 438 511 630 657 730 1022 1095 1314 1533 2190 2555 3066 3285 4599 5110 6570 7665 9198 15330 22995 43933 45990 87866 131799 219665 263598 307531 395397 439330 615062 658995 790794 922593 1317990 1537655 1845186 1976985 2767779 3075310 3207109 3953970 4612965 5535558 6414218 9225930 9621327 13838895 16035545 19242654 22449763 27677790 28863981 32071090 44899526 48106635 57727962 67349289 96213270 112248815 134698578 144319905 202047867 224497630 288639810 336746445 404095734 673492890 1010239335 2020478670