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101030445220 = 22531162952331
BaseRepresentation
bin101111000010111100…
…0100100000010100100
3100122202222121101100111
41132011320210002210
53123402243221340
6114225053022404
710204425420655
oct1360570440244
9318688541314
10101030445220
1139935063921
12176b6a84a04
1396b1149443
144c65c5552c
152964931aea
hex1785e240a4

101030445220 has 24 divisors (see below), whose sum is σ = 219007934208. Its totient is φ = 39108559200.

The previous prime is 101030445211. The next prime is 101030445221. The reversal of 101030445220 is 22544030101.

It is a super-2 number, since 2×1010304452202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101030445191 and 101030445200.

It is not an unprimeable number, because it can be changed into a prime (101030445221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81475546 + ... + 81476785.

It is an arithmetic number, because the mean of its divisors is an integer number (9125330592).

Almost surely, 2101030445220 is an apocalyptic number.

101030445220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101030445220 is an abundant number, since it is smaller than the sum of its proper divisors (117977488988).

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

101030445220 is a wasteful number, since it uses less digits than its factorization.

101030445220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162952371 (or 162952369 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 101030445220 its reverse (22544030101), we get a palindrome (123574475321).

The spelling of 101030445220 in words is "one hundred one billion, thirty million, four hundred forty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 162952331 325904662 651809324 814761655 1629523310 3259046620 5051522261 10103044522 20206089044 25257611305 50515222610 101030445220