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55201002210 = 23253891576721
BaseRepresentation
bin110011011010001111…
…000111001011100010
312021111001102110101100
4303122033013023202
51401022424032320
641205313015230
73662634530334
oct633217071342
9167431373340
1055201002210
1121457587a92
12a846854516
135289446b23
142959395454
1516812a2790
hexcda3c72e2

55201002210 has 48 divisors (see below), whose sum is σ = 143891649720. Its totient is φ = 14682416640.

The previous prime is 55201002203. The next prime is 55201002211. The reversal of 55201002210 is 1220010255.

55201002210 is a `hidden beast` number, since 552 + 0 + 100 + 2 + 2 + 10 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 34977602529 + 20223399681 = 187023^2 + 142209^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (55201002211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 753351 + ... + 823370.

Almost surely, 255201002210 is an apocalyptic number.

55201002210 is an abundant number, since it is smaller than the sum of its proper divisors (88690647510).

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

55201002210 is a wasteful number, since it uses less digits than its factorization.

55201002210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577123 (or 1577120 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

Adding to 55201002210 its reverse (1220010255), we get a palindrome (56421012465).

The spelling of 55201002210 in words is "fifty-five billion, two hundred one million, two thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 389 778 1167 1945 2334 3501 3890 5835 7002 11670 17505 35010 1576721 3153442 4730163 7883605 9460326 14190489 15767210 23650815 28380978 47301630 70952445 141904890 613344469 1226688938 1840033407 3066722345 3680066814 5520100221 6133444690 9200167035 11040200442 18400334070 27600501105 55201002210