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20213310120 = 2335168444251
BaseRepresentation
bin10010110100110011…
…101010001010101000
31221011200220112201120
4102310303222022220
5312344101410440
613141425215240
71313622205203
oct226463521250
957150815646
1020213310120
118632983083
123b01491520
131ba1942343
14d9a77093a
157d4853dd0
hex4b4cea2a8

20213310120 has 32 divisors (see below), whose sum is σ = 60639930720. Its totient is φ = 5390216000.

The previous prime is 20213310101. The next prime is 20213310121. The reversal of 20213310120 is 2101331202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20213310120.

It is not an unprimeable number, because it can be changed into a prime (20213310121) 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, 84222006 + ... + 84222245.

It is an arithmetic number, because the mean of its divisors is an integer number (1894997835).

Almost surely, 220213310120 is an apocalyptic number.

20213310120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20213310120 is an abundant number, since it is smaller than the sum of its proper divisors (40426620600).

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

20213310120 is a wasteful number, since it uses less digits than its factorization.

20213310120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168444265 (or 168444261 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20213310120 its reverse (2101331202), we get a palindrome (22314641322).

The spelling of 20213310120 in words is "twenty billion, two hundred thirteen million, three hundred ten thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 168444251 336888502 505332753 673777004 842221255 1010665506 1347554008 1684442510 2021331012 2526663765 3368885020 4042662024 5053327530 6737770040 10106655060 20213310120