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202110000220 = 22573138431507
BaseRepresentation
bin1011110000111010110…
…0011101110001011100
3201022200101121210122201
42330032230131301130
511302410130001340
6232503102421244
720413321441102
oct2741654356134
9638611553581
10202110000220
117879490a637
1233206291824
131609c4cba0b
149ad4411c72
1553cd81479a
hex2f0eb1dc5c

202110000220 has 24 divisors (see below), whose sum is σ = 430245126864. Its totient is φ = 79736547456.

The previous prime is 202110000109. The next prime is 202110000247. The reversal of 202110000220 is 22000011202.

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 = 202110000197 and 202110000206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69214294 + ... + 69217213.

It is an arithmetic number, because the mean of its divisors is an integer number (17926880286).

Almost surely, 2202110000220 is an apocalyptic number.

202110000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202110000220 is an abundant number, since it is smaller than the sum of its proper divisors (228135126644).

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

202110000220 is a wasteful number, since it uses less digits than its factorization.

202110000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138431589 (or 138431587 counting only the distinct ones).

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

Adding to 202110000220 its reverse (22000011202), we get a palindrome (224110011422).

The spelling of 202110000220 in words is "two hundred two billion, one hundred ten million, two hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 138431507 276863014 553726028 692157535 1384315070 2768630140 10105500011 20211000022 40422000044 50527500055 101055000110 202110000220