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2180220152 = 231133773517
BaseRepresentation
bin1000000111110011…
…1000010011111000
312121221110122210112
42001330320103320
513431114021102
61000201403452
7105012364655
oct20174702370
95557418715
102180220152
11a1974a740
1250a199588
132898c74c6
141697acc2c
15cb611252
hex81f384f8

2180220152 has 32 divisors (see below), whose sum is σ = 4472835120. Its totient is φ = 988055040.

The previous prime is 2180220127. The next prime is 2180220181. The reversal of 2180220152 is 2510220812.

It is a super-2 number, since 2×21802201522 = 9506719822373806208, which contains 22 as substring.

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, 7103 + ... + 66414.

Almost surely, 22180220152 is an apocalyptic number.

2180220152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2180220152 is an abundant number, since it is smaller than the sum of its proper divisors (2292614968).

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

2180220152 is a wasteful number, since it uses less digits than its factorization.

2180220152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73871 (or 73867 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 2180220152 is about 46692.8276290910. The cubic root of 2180220152 is about 1296.6819034416.

Adding to 2180220152 its reverse (2510220812), we get a palindrome (4690440964).

The spelling of 2180220152 in words is "two billion, one hundred eighty million, two hundred twenty thousand, one hundred fifty-two".

Divisors: 1 2 4 8 11 22 44 88 337 674 1348 2696 3707 7414 14828 29656 73517 147034 294068 588136 808687 1617374 3234748 6469496 24775229 49550458 99100916 198201832 272527519 545055038 1090110076 2180220152