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101420055 = 32511331619
BaseRepresentation
bin1100000101110…
…00110000010111
321001211200011100
412002320300113
5201430420210
614021441143
72341025202
oct602706027
9231750140
10101420055
1152281430
1229b701b3
131801cc89
14d680939
158d855c0
hex60b8c17

101420055 has 48 divisors (see below), whose sum is σ = 192666240. Its totient is φ = 48945600.

The previous prime is 101420027. The next prime is 101420063. The reversal of 101420055 is 550024101.

It is not a de Polignac number, because 101420055 - 26 = 101419991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163536 + ... + 164154.

It is an arithmetic number, because the mean of its divisors is an integer number (4013880).

Almost surely, 2101420055 is an apocalyptic number.

101420055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101420055 is a deficient number, since it is larger than the sum of its proper divisors (91246185).

101420055 is a wasteful number, since it uses less digits than its factorization.

101420055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 969 counting only the distinct ones).

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

The square root of 101420055 is about 10070.7524545090. The cubic root of 101420055 is about 466.3456684232.

Adding to 101420055 its reverse (550024101), we get a palindrome (651444156).

The spelling of 101420055 in words is "one hundred one million, four hundred twenty thousand, fifty-five".

Divisors: 1 3 5 9 11 15 33 45 55 99 165 331 495 619 993 1655 1857 2979 3095 3641 4965 5571 6809 9285 10923 14895 18205 20427 27855 32769 34045 54615 61281 102135 163845 204889 306405 614667 1024445 1844001 2253779 3073335 6761337 9220005 11268895 20284011 33806685 101420055