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10020202120 = 2351316319031
BaseRepresentation
bin10010101010100000…
…00010011010001000
3221212022210000020001
421111100002122020
5131010132431440
64334143412344
7503211212155
oct112520023210
927768700201
1010020202120
114282163185
121b378b40b4
13c38c418a6
146b0b0122c
153d9a4db9a
hex255402688

10020202120 has 32 divisors (see below), whose sum is σ = 22548352320. Its totient is φ = 4007565760.

The previous prime is 10020202111. The next prime is 10020202147. The reversal of 10020202120 is 2120202001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10020202097 and 10020202106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517005 + ... + 536035.

It is an arithmetic number, because the mean of its divisors is an integer number (704636010).

Almost surely, 210020202120 is an apocalyptic number.

10020202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020202120 is an abundant number, since it is smaller than the sum of its proper divisors (12528150200).

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

10020202120 is a wasteful number, since it uses less digits than its factorization.

10020202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32205 (or 32201 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 10020202120 its reverse (2120202001), we get a palindrome (12140404121).

The spelling of 10020202120 in words is "ten billion, twenty million, two hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 13163 19031 26326 38062 52652 65815 76124 95155 105304 131630 152248 190310 263260 380620 526520 761240 250505053 501010106 1002020212 1252525265 2004040424 2505050530 5010101060 10020202120