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101235940828 = 221121922934801
BaseRepresentation
bin101111001001000100…
…0011101110111011100
3100200022022021122022221
41132102020131313130
53124312400101303
6114301313315124
710212502204351
oct1362210356734
9320268248287
10101235940828
1139a3005a800
1217753865aa4
1397148a8c89
144c85268628
1529779c44bd
hex179221dddc

101235940828 has 72 divisors (see below), whose sum is σ = 205113972560. Its totient is φ = 43566336000.

The previous prime is 101235940787. The next prime is 101235940829. The reversal of 101235940828 is 828049532101.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101235940829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21084028 + ... + 21088828.

Almost surely, 2101235940828 is an apocalyptic number.

It is an amenable number.

101235940828 is an abundant number, since it is smaller than the sum of its proper divisors (103878031732).

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

101235940828 is a wasteful number, since it uses less digits than its factorization.

101235940828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7139 (or 7126 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 101235940828 in words is "one hundred one billion, two hundred thirty-five million, nine hundred forty thousand, eight hundred twenty-eight".

Divisors: 1 2 4 11 19 22 38 44 76 121 209 242 418 484 836 2293 2299 4586 4598 4801 9172 9196 9602 19204 25223 43567 50446 52811 87134 91219 100892 105622 174268 182438 211244 277453 364876 479237 554906 580921 958474 1003409 1109812 1161842 1916948 2006818 2323684 4013636 5271607 10543214 11008693 11037499 21086428 22017386 22074998 44034772 44149996 121095623 209165167 242191246 418330334 484382492 836660668 1332051853 2300816837 2664103706 4601633674 5328207412 9203267348 25308985207 50617970414 101235940828