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1031230420100 = 225210312304201
BaseRepresentation
bin11110000000110100001…
…11110111010010000100
310122120210012222010220222
433000122013313102010
5113343424441420400
62105423554443512
7134334564641336
oct17003207672204
93576705863828
101031230420100
11368384762841
12147a38b93598
137632454636a
1437caa05d456
151bc583d9185
hexf01a1f7484

1031230420100 has 18 divisors (see below), whose sum is σ = 2237770011834. Its totient is φ = 412492168000.

The previous prime is 1031230420067. The next prime is 1031230420141. The reversal of 1031230420100 is 10240321301.

It can be written as a sum of positive squares in 3 ways, for example, as 6798991936 + 1024431428164 = 82456^2 + 1012142^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5156152001 + ... + 5156152200.

It is an arithmetic number, because the mean of its divisors is an integer number (124320556213).

Almost surely, 21031230420100 is an apocalyptic number.

1031230420100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031230420100 is an abundant number, since it is smaller than the sum of its proper divisors (1206539591734).

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

1031230420100 is a wasteful number, since it uses less digits than its factorization.

1031230420100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10312304215 (or 10312304208 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1031230420100 its reverse (10240321301), we get a palindrome (1041470741401).

The spelling of 1031230420100 in words is "one trillion, thirty-one billion, two hundred thirty million, four hundred twenty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 10312304201 20624608402 41249216804 51561521005 103123042010 206246084020 257807605025 515615210050 1031230420100