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101230203020 = 22531163274521
BaseRepresentation
bin101111001000111001…
…0100101000010001100
3100200021220111010112112
41132101302211002030
53124304412444040
6114300550323152
710212402346142
oct1362162450214
9320256433475
10101230203020
1139a278a0911
12177519594b8
13971364a41b
144c845b3592
15297723e365
hex1791ca508c

101230203020 has 24 divisors (see below), whose sum is σ = 219440957568. Its totient is φ = 39185884800.

The previous prime is 101230203007. The next prime is 101230203023. The reversal of 101230203020 is 20302032101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101230202986 and 101230203004.

It is not an unprimeable number, because it can be changed into a prime (101230203023) 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, 81636641 + ... + 81637880.

It is an arithmetic number, because the mean of its divisors is an integer number (9143373232).

Almost surely, 2101230203020 is an apocalyptic number.

101230203020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101230203020 is an abundant number, since it is smaller than the sum of its proper divisors (118210754548).

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

101230203020 is a wasteful number, since it uses less digits than its factorization.

101230203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163274561 (or 163274559 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 101230203020 its reverse (20302032101), we get a palindrome (121532235121).

The spelling of 101230203020 in words is "one hundred one billion, two hundred thirty million, two hundred three thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 163274521 326549042 653098084 816372605 1632745210 3265490420 5061510151 10123020302 20246040604 25307550755 50615101510 101230203020