Search a number
-
+
128473018016 = 2572399125163
BaseRepresentation
bin111011110100110010…
…1101010111010100000
3110021121111122112010112
41313221211222322200
54101103043034031
6135004130350452
712165452430560
oct1675145527240
9407544575115
10128473018016
114a53773aa52
1220a9542b428
13c1657261b5
14630a780da0
15351dc8962b
hex1de996aea0

128473018016 has 96 divisors (see below), whose sum is σ = 301948674048. Its totient is φ = 52610722560.

The previous prime is 128473018013. The next prime is 128473018087. The reversal of 128473018016 is 610810374821.

It is not an unprimeable number, because it can be changed into a prime (128473018013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5093051 + ... + 5118213.

It is an arithmetic number, because the mean of its divisors is an integer number (3145298688).

Almost surely, 2128473018016 is an apocalyptic number.

128473018016 is a gapful number since it is divisible by the number (16) 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 128473018016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150974337024).

128473018016 is an abundant number, since it is smaller than the sum of its proper divisors (173475656032).

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

128473018016 is a wasteful number, since it uses less digits than its factorization.

128473018016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26194 (or 26186 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 128473018016 in words is "one hundred twenty-eight billion, four hundred seventy-three million, eighteen thousand, sixteen".

Divisors: 1 2 4 7 8 14 16 23 28 32 46 56 92 112 161 184 224 322 368 644 736 991 1288 1982 2576 3964 5152 6937 7928 13874 15856 22793 25163 27748 31712 45586 50326 55496 91172 100652 110992 159551 176141 182344 201304 221984 319102 352282 364688 402608 578749 638204 704564 729376 805216 1157498 1276408 1409128 2314996 2552816 2818256 4051243 4629992 5105632 5636512 8102486 9259984 16204972 18519968 24936533 32409944 49873066 64819888 99746132 129639776 174555731 199492264 349111462 398984528 573540259 698222924 797969056 1147080518 1396445848 2294161036 2792891696 4014781813 4588322072 5585783392 8029563626 9176644144 16059127252 18353288288 32118254504 64236509008 128473018016