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10213212020 = 2251146423691
BaseRepresentation
bin10011000001100000…
…10011111101110100
3222100202221221000212
421200300103331310
5131404040241040
64405240324552
7511043604224
oct114060237564
928322857025
1010213212020
1143711013a0
121b90473758
13c69c1c32b
146cc5c4084
153eb976d65
hex260c13f74

10213212020 has 24 divisors (see below), whose sum is σ = 23397540768. Its totient is φ = 3713895200.

The previous prime is 10213212019. The next prime is 10213212029. The reversal of 10213212020 is 2021231201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10213211986 and 10213212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10213212029) 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, 23211626 + ... + 23212065.

It is an arithmetic number, because the mean of its divisors is an integer number (974897532).

Almost surely, 210213212020 is an apocalyptic number.

10213212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10213212020 is an abundant number, since it is smaller than the sum of its proper divisors (13184328748).

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

10213212020 is a wasteful number, since it uses less digits than its factorization.

10213212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46423711 (or 46423709 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10213212020 its reverse (2021231201), we get a palindrome (12234443221).

The spelling of 10213212020 in words is "ten billion, two hundred thirteen million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 46423691 92847382 185694764 232118455 464236910 510660601 928473820 1021321202 2042642404 2553303005 5106606010 10213212020