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2064447693 = 3271147241263
BaseRepresentation
bin111101100001100…
…1111100011001101
312022212121210211200
41323003033203031
513211444311233
6540504140113
7102105341640
oct17303174315
95285553750
102064447693
1196a366120
12497467639
1326b9208a9
14158273a57
15c1393313
hex7b0cf8cd

2064447693 has 96 divisors (see below), whose sum is σ = 3827146752. Its totient is φ = 1041292800.

The previous prime is 2064447661. The next prime is 2064447719. The reversal of 2064447693 is 3967444602.

It is a happy number.

It is not a de Polignac number, because 2064447693 - 25 = 2064447661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064447613) 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, 7849480 + ... + 7849742.

It is an arithmetic number, because the mean of its divisors is an integer number (39866112).

Almost surely, 22064447693 is an apocalyptic number.

It is an amenable number.

2064447693 is a deficient number, since it is larger than the sum of its proper divisors (1762699059).

2064447693 is a wasteful number, since it uses less digits than its factorization.

2064447693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The square root of 2064447693 is about 45436.1936455949. The cubic root of 2064447693 is about 1273.3114015316.

The spelling of 2064447693 in words is "two billion, sixty-four million, four hundred forty-seven thousand, six hundred ninety-three".

Divisors: 1 3 7 9 11 21 33 47 63 77 99 141 231 241 263 329 423 517 693 723 789 987 1551 1687 1841 2169 2367 2651 2893 2961 3619 4653 5061 5523 7953 8679 10857 11327 12361 15183 16569 18557 20251 23859 26037 32571 33981 37083 55671 60753 63383 79289 86527 101943 111249 124597 135971 167013 182259 190149 237867 259581 373791 407913 443681 570447 697213 713601 778743 872179 951797 1121373 1223739 1331043 2091639 2616537 2855391 2979001 3993129 4880491 6274917 7849611 8566173 8937003 14641473 20853007 26811009 32769011 43924419 62559021 98307033 187677063 229383077 294921099 688149231 2064447693