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128008071036 = 2234395086639
BaseRepresentation
bin111011100110111100…
…0000010011101111100
3110020102002202202210000
41313031320002131330
54044130031233121
6134450041114300
712151105436166
oct1671570023574
9406362682700
10128008071036
114a31924544a
1220985788990
13c0c02c5041
1462a4b11936
1534e3047526
hex1dcde0277c

128008071036 has 30 divisors (see below), whose sum is σ = 334638384080. Its totient is φ = 42669356904.

The previous prime is 128008071001. The next prime is 128008071041. The reversal of 128008071036 is 630170800821.

It is a super-2 number, since 2×1280080710362 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 197542996 + ... + 197543643.

Almost surely, 2128008071036 is an apocalyptic number.

It is an amenable number.

128008071036 is an abundant number, since it is smaller than the sum of its proper divisors (206630313044).

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

128008071036 is a wasteful number, since it uses less digits than its factorization.

128008071036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395086655 (or 395086644 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

Adding to 128008071036 its reverse (630170800821), we get a palindrome (758178871857).

The spelling of 128008071036 in words is "one hundred twenty-eight billion, eight million, seventy-one thousand, thirty-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 395086639 790173278 1185259917 1580346556 2370519834 3555779751 4741039668 7111559502 10667339253 14223119004 21334678506 32002017759 42669357012 64004035518 128008071036