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101032232220 = 22325561290179
BaseRepresentation
bin101111000010111111…
…1011000010100011100
3100122210002222011122200
41132011333120110130
53123403222412340
6114225155211500
710204446542613
oct1360577302434
9318702864580
10101032232220
1139936074487
12176b75a6b90
1396b162393a
144c6619c87a
152964b86330
hex1785fd851c

101032232220 has 36 divisors (see below), whose sum is σ = 306464438280. Its totient is φ = 26941928544.

The previous prime is 101032232179. The next prime is 101032232221. The reversal of 101032232220 is 22232230101.

101032232220 is a `hidden beast` number, since 1 + 0 + 1 + 0 + 322 + 322 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1010322322202 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 101032232193 and 101032232202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101032232221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280644910 + ... + 280645269.

Almost surely, 2101032232220 is an apocalyptic number.

101032232220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101032232220 is an abundant number, since it is smaller than the sum of its proper divisors (205432206060).

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

101032232220 is a wasteful number, since it uses less digits than its factorization.

101032232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561290194 (or 561290189 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 101032232220 its reverse (22232230101), we get a palindrome (123264462321).

The spelling of 101032232220 in words is "one hundred one billion, thirty-two million, two hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 561290179 1122580358 1683870537 2245160716 2806450895 3367741074 5051611611 5612901790 6735482148 8419352685 10103223222 11225803580 16838705370 20206446444 25258058055 33677410740 50516116110 101032232220