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105313731456 = 2731631682543
BaseRepresentation
bin110001000010100110…
…0000000001110000000
3101001211111100212110110
41202011030000032000
53211140303401311
6120214102431320
710415525642643
oct1420514001600
9331744325413
10105313731456
11407329461aa
12184b1432540
139c1466623b
145150a6ba5a
152b159b38a6
hex1885300380

105313731456 has 64 divisors (see below), whose sum is σ = 281455960320. Its totient is φ = 34889190912.

The previous prime is 105313731437. The next prime is 105313731473. The reversal of 105313731456 is 654137313501.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1053137314562 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 778680 + ... + 903863.

It is an arithmetic number, because the mean of its divisors is an integer number (4397749380).

Almost surely, 2105313731456 is an apocalyptic number.

105313731456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

105313731456 is an abundant number, since it is smaller than the sum of its proper divisors (176142228864).

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

105313731456 is a wasteful number, since it uses less digits than its factorization.

105313731456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682723 (or 1682711 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The spelling of 105313731456 in words is "one hundred five billion, three hundred thirteen million, seven hundred thirty-one thousand, four hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 163 192 326 384 489 652 978 1304 1956 2608 3912 5216 7824 10432 15648 20864 31296 62592 1682543 3365086 5047629 6730172 10095258 13460344 20190516 26920688 40381032 53841376 80762064 107682752 161524128 215365504 274254509 323048256 548509018 646096512 822763527 1097018036 1645527054 2194036072 3291054108 4388072144 6582108216 8776144288 13164216432 17552288576 26328432864 35104577152 52656865728 105313731456