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2091308112 = 243319318219
BaseRepresentation
bin111110010100110…
…1101010001010000
312101202011110102000
41330221231101100
513240333324422
6543303554000
7102552553125
oct17451552120
95352143360
102091308112
11983541813
124a445b900
1327436682a
1415ba6674c
15c38ebcac
hex7ca6d450

2091308112 has 160 divisors (see below), whose sum is σ = 6523392000. Its totient is φ = 639031680.

The previous prime is 2091308047. The next prime is 2091308119. The reversal of 2091308112 is 2118031902.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091308119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250339 + ... + 258557.

It is an arithmetic number, because the mean of its divisors is an integer number (40771200).

Almost surely, 22091308112 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 2091308112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3261696000).

2091308112 is an abundant number, since it is smaller than the sum of its proper divisors (4432083888).

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

2091308112 is a wasteful number, since it uses less digits than its factorization.

2091308112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8286 (or 8274 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 2091308112 is about 45730.8223411738. The cubic root of 2091308112 is about 1278.8099518680.

The spelling of 2091308112 in words is "two billion, ninety-one million, three hundred eight thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 27 31 36 38 48 54 57 62 72 76 93 108 114 124 144 152 171 186 216 228 248 279 304 342 372 432 456 496 513 558 589 684 744 837 912 1026 1116 1178 1368 1488 1674 1767 2052 2232 2356 2736 3348 3534 4104 4464 4712 5301 6696 7068 8208 8219 9424 10602 13392 14136 15903 16438 21204 24657 28272 31806 32876 42408 49314 63612 65752 73971 84816 98628 127224 131504 147942 156161 197256 221913 254448 254789 295884 312322 394512 443826 468483 509578 591768 624644 764367 887652 936966 1019156 1183536 1249288 1405449 1528734 1775304 1873932 2038312 2293101 2498576 2810898 3057468 3550608 3747864 4076624 4216347 4586202 4840991 5621796 6114936 6879303 7495728 8432694 9172404 9681982 11243592 12229872 13758606 14522973 16865388 18344808 19363964 22487184 27517212 29045946 33730776 36689616 38727928 43568919 55034424 58091892 67461552 77455856 87137838 110068848 116183784 130706757 174275676 232367568 261413514 348551352 522827028 697102704 1045654056 2091308112