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1220512255214 = 271728319181087
BaseRepresentation
bin10001110000101100001…
…100110000110011101110
311022200100121010122021112
4101300230030300303232
5124444102114131324
62332410125232022
7154115300665250
oct21605414606356
94280317118245
101220512255214
1143068639302a
12178663102612
138b12b148925
1443104875cd0
1521b358e0c0e
hex11c2c330cee

1220512255214 has 32 divisors (see below), whose sum is σ = 2215474053120. Its totient is φ = 492287361408.

The previous prime is 1220512255111. The next prime is 1220512255219. The reversal of 1220512255214 is 4125522150221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220512255219) 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 15 ways as a sum of consecutive naturals, for example, 6649379 + ... + 6830465.

It is an arithmetic number, because the mean of its divisors is an integer number (69233564160).

Almost surely, 21220512255214 is an apocalyptic number.

1220512255214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1220512255214 is a deficient number, since it is larger than the sum of its proper divisors (994961797906).

1220512255214 is a wasteful number, since it uses less digits than its factorization.

1220512255214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209432.

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 1220512255214 in words is "one trillion, two hundred twenty billion, five hundred twelve million, two hundred fifty-five thousand, two hundred fourteen".

Divisors: 1 2 7 14 17 34 119 238 28319 56638 181087 198233 362174 396466 481423 962846 1267609 2535218 3078479 3369961 6156958 6739922 21549353 43098706 5128202753 10256405506 35897419271 71794838542 87179446801 174358893602 610256127607 1220512255214