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101015055 = 3252244779
BaseRepresentation
bin1100000010101…
…01111000001111
321001002002121100
412001111320033
5201324440210
614005034143
72334420351
oct601257017
9231062540
10101015055
1152025119
12299b5953
1317c0a82b
14d5b70d1
158d055c0
hex6055e0f

101015055 has 12 divisors (see below), whose sum is σ = 175092840. Its totient is φ = 53874672.

The previous prime is 101014999. The next prime is 101015059. The reversal of 101015055 is 550510101.

It is not a de Polignac number, because 101015055 - 210 = 101014031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101015059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1122345 + ... + 1122434.

It is an arithmetic number, because the mean of its divisors is an integer number (14591070).

Almost surely, 2101015055 is an apocalyptic number.

101015055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101015055 is a deficient number, since it is larger than the sum of its proper divisors (74077785).

101015055 is a wasteful number, since it uses less digits than its factorization.

101015055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244790 (or 2244787 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 101015055 is about 10050.6246074560. The cubic root of 101015055 is about 465.7240886665.

Adding to 101015055 its reverse (550510101), we get a palindrome (651525156).

The spelling of 101015055 in words is "one hundred one million, fifteen thousand, fifty-five".

Divisors: 1 3 5 9 15 45 2244779 6734337 11223895 20203011 33671685 101015055