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20202132210 = 2351361384503
BaseRepresentation
bin10010110100001001…
…000001001011110010
31221010220212122111220
4102310021001023302
5312333221212320
613140345445510
71313425201431
oct226411011362
957126778456
1020202132210
118627638a37
123ab97a0896
131b9c52a5b0
14d990a1118
157d3896e40
hex4b42412f2

20202132210 has 64 divisors (see below), whose sum is σ = 52300539648. Its totient is φ = 4964661504.

The previous prime is 20202132103. The next prime is 20202132227. The reversal of 20202132210 is 1223120202.

It is a happy number.

It is a super-3 number, since 3×202021322103 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 20202132210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196819 + ... + 281321.

It is an arithmetic number, because the mean of its divisors is an integer number (817195932).

Almost surely, 220202132210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202132210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26150269824).

20202132210 is an abundant number, since it is smaller than the sum of its proper divisors (32098407438).

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

20202132210 is a wasteful number, since it uses less digits than its factorization.

20202132210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85139.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20202132210 its reverse (1223120202), we get a palindrome (21425252412).

The spelling of 20202132210 in words is "twenty billion, two hundred two million, one hundred thirty-two thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 613 1226 1839 3065 3678 6130 7969 9195 15938 18390 23907 39845 47814 79690 84503 119535 169006 239070 253509 422515 507018 845030 1098539 1267545 2197078 2535090 3295617 5492695 6591234 10985390 16478085 32956170 51800339 103600678 155401017 259001695 310802034 518003390 673404407 777005085 1346808814 1554010170 2020213221 3367022035 4040426442 6734044070 10101066105 20202132210