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101220232235 = 5157503925589
BaseRepresentation
bin101111001000100110…
…0100010110000101011
3100200021012201120012012
41132101030202300223
53124244334412420
6114255552510135
710212221530613
oct1362114426053
9320235646165
10101220232235
1139a222006a1
121774a54b34b
139711568c55
144c83139a43
15297641edc5
hex1791322c2b

101220232235 has 16 divisors (see below), whose sum is σ = 122266972800. Its totient is φ = 80441302656.

The previous prime is 101220232207. The next prime is 101220232241. The reversal of 101220232235 is 532232022101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101220232235 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101220232235.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3942821 + ... + 3968409.

It is an arithmetic number, because the mean of its divisors is an integer number (7641685800).

Almost surely, 2101220232235 is an apocalyptic number.

101220232235 is a deficient number, since it is larger than the sum of its proper divisors (21046740565).

101220232235 is a wasteful number, since it uses less digits than its factorization.

101220232235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30790.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 101220232235 its reverse (532232022101), we get a palindrome (633452254336).

The spelling of 101220232235 in words is "one hundred one billion, two hundred twenty million, two hundred thirty-two thousand, two hundred thirty-five".

Divisors: 1 5 157 785 5039 25195 25589 127945 791123 3955615 4017473 20087365 128942971 644714855 20244046447 101220232235