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1208068992 = 2734138963
BaseRepresentation
bin100100000000001…
…1010101110000000
310010012012021010000
41020000122232000
54433231201432
6315513040000
741636263014
oct11000325600
93105167100
101208068992
1156aa18129
122986b6000
1316338b130
14b6630544
15710d157c
hex4801ab80

1208068992 has 160 divisors (see below), whose sum is σ = 3872179080. Its totient is φ = 371672064.

The previous prime is 1208068991. The next prime is 1208068993. The reversal of 1208068992 is 2998608021.

It is an interprime number because it is at equal distance from previous prime (1208068991) and next prime (1208068993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208068991) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 130303 + ... + 139265.

Almost surely, 21208068992 is an apocalyptic number.

1208068992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1208068992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1936089540).

1208068992 is an abundant number, since it is smaller than the sum of its proper divisors (2664110088).

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

1208068992 is an equidigital number, since it uses as much as digits as its factorization.

1208068992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9002 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 1208068992 is about 34757.2868906651. The cubic root of 1208068992 is about 1065.0350791857.

The spelling of 1208068992 in words is "one billion, two hundred eight million, sixty-eight thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 81 96 104 108 117 128 144 156 162 192 208 216 234 288 312 324 351 384 416 432 468 576 624 648 702 832 864 936 1053 1152 1248 1296 1404 1664 1728 1872 2106 2496 2592 2808 3456 3744 4212 4992 5184 5616 7488 8424 8963 10368 11232 14976 16848 17926 22464 26889 33696 35852 44928 53778 67392 71704 80667 107556 116519 134784 143408 161334 215112 233038 242001 286816 322668 349557 430224 466076 484002 573632 645336 699114 726003 860448 932152 968004 1048671 1147264 1290672 1398228 1452006 1720896 1864304 1936008 2097342 2581344 2796456 2904012 3146013 3441792 3728608 3872016 4194684 5162688 5592912 5808024 6292026 7457216 7744032 8389368 9438039 10325376 11185824 11616048 12584052 14914432 15488064 16778736 18876078 22371648 23232096 25168104 30976128 33557472 37752156 44743296 46464192 50336208 67114944 75504312 92928384 100672416 134229888 151008624 201344832 302017248 402689664 604034496 1208068992