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2865813372 = 223459197761
BaseRepresentation
bin1010101011010000…
…1101011101111100
321101201112101220000
42222310031131330
521332122011442
61152212154300
7131006004012
oct25264153574
97351471800
102865813372
11124074a004
1267b908990
13368961276
141d28768b2
1511b8d9d4c
hexaad0d77c

2865813372 has 120 divisors (see below), whose sum is σ = 7667518320. Its totient is φ = 933085440.

The previous prime is 2865813371. The next prime is 2865813397. The reversal of 2865813372 is 2733185682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2865813371) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3765472 + ... + 3766232.

It is an arithmetic number, because the mean of its divisors is an integer number (63895986).

Almost surely, 22865813372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2865813372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3833759160).

2865813372 is an abundant number, since it is smaller than the sum of its proper divisors (4801704948).

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

2865813372 is a wasteful number, since it uses less digits than its factorization.

2865813372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 1022 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 2865813372 is about 53533.2921834628. The cubic root of 2865813372 is about 1420.4173493881.

The spelling of 2865813372 in words is "two billion, eight hundred sixty-five million, eight hundred thirteen thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 59 81 108 118 162 177 197 236 324 354 394 531 591 708 761 788 1062 1182 1522 1593 1773 2124 2283 2364 3044 3186 3546 4566 4779 5319 6372 6849 7092 9132 9558 10638 11623 13698 15957 19116 20547 21276 23246 27396 31914 34869 41094 44899 46492 61641 63828 69738 82188 89798 104607 123282 134697 139476 149917 179596 209214 246564 269394 299834 313821 404091 418428 449751 538788 599668 627642 808182 899502 941463 1212273 1255284 1349253 1616364 1799004 1882926 2424546 2698506 3636819 3765852 4047759 4849092 5397012 7273638 8095518 8845103 12143277 14547276 16191036 17690206 24286554 26535309 35380412 48573108 53070618 79605927 106141236 159211854 238817781 318423708 477635562 716453343 955271124 1432906686 2865813372