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10100020220 = 225505001011
BaseRepresentation
bin10010110100000001…
…00001001111111100
3222001212222012001222
421122000201033330
5131141101121340
64350114252512
7505200520043
oct113200411774
928055865058
1010100020220
11431321a754
121b5a587138
13c4c63a234
146bb55b55a
153e1a688b5
hex25a0213fc

10100020220 has 12 divisors (see below), whose sum is σ = 21210042504. Its totient is φ = 4040008080.

The previous prime is 10100020163. The next prime is 10100020267. The reversal of 10100020220 is 2202000101.

It is a junction number, because it is equal to n+sod(n) for n = 10100020198 and 10100020207.

It is a congruent number.

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, 252500486 + ... + 252500525.

It is an arithmetic number, because the mean of its divisors is an integer number (1767503542).

Almost surely, 210100020220 is an apocalyptic number.

10100020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10100020220 is an abundant number, since it is smaller than the sum of its proper divisors (11110022284).

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

10100020220 is a wasteful number, since it uses less digits than its factorization.

10100020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505001020 (or 505001018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 10100020220 its reverse (2202000101), we get a palindrome (12302020321).

The spelling of 10100020220 in words is "ten billion, one hundred million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 505001011 1010002022 2020004044 2525005055 5050010110 10100020220