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101212107 = 31910391709
BaseRepresentation
bin1100000100001…
…01111111001011
321001110002220120
412002011333023
5201402241412
614013154323
72336201013
oct602057713
9231402816
10101212107
115214a177
1229a8b9a3
1317c79429
14d628c43
158d43b8c
hex6085fcb

101212107 has 16 divisors (see below), whose sum is σ = 142272000. Its totient is φ = 63824544.

The previous prime is 101212087. The next prime is 101212127. The reversal of 101212107 is 701212101.

It is an interprime number because it is at equal distance from previous prime (101212087) and next prime (101212127).

It is not a de Polignac number, because 101212107 - 214 = 101195723 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (101212127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58369 + ... + 60077.

It is an arithmetic number, because the mean of its divisors is an integer number (8892000).

Almost surely, 2101212107 is an apocalyptic number.

101212107 is a deficient number, since it is larger than the sum of its proper divisors (41059893).

101212107 is a wasteful number, since it uses less digits than its factorization.

101212107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770.

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 101212107 is about 10060.4228042364. The cubic root of 101212107 is about 466.0267242620.

Adding to 101212107 its reverse (701212101), we get a palindrome (802424208).

The spelling of 101212107 in words is "one hundred one million, two hundred twelve thousand, one hundred seven".

Divisors: 1 3 19 57 1039 1709 3117 5127 19741 32471 59223 97413 1775651 5326953 33737369 101212107