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202104431020 = 22510105221551
BaseRepresentation
bin1011110000111001011…
…1001110000110101100
3201022200000010212011001
42330032113032012230
511302402213243040
6232502343210044
720413223214262
oct2741627160654
9638600125131
10202104431020
1178791756398
1233204446924
131609b2cbb2b
149ad37a2432
1553cd0b459a
hex2f0e5ce1ac

202104431020 has 12 divisors (see below), whose sum is σ = 424419305184. Its totient is φ = 80841772400.

The previous prime is 202104430993. The next prime is 202104431161. The reversal of 202104431020 is 20134401202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5052610756 + ... + 5052610795.

It is an arithmetic number, because the mean of its divisors is an integer number (35368275432).

Almost surely, 2202104431020 is an apocalyptic number.

202104431020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202104431020 is an abundant number, since it is smaller than the sum of its proper divisors (222314874164).

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

202104431020 is a wasteful number, since it uses less digits than its factorization.

202104431020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10105221560 (or 10105221558 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 202104431020 its reverse (20134401202), we get a palindrome (222238832222).

The spelling of 202104431020 in words is "two hundred two billion, one hundred four million, four hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 10105221551 20210443102 40420886204 50526107755 101052215510 202104431020