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101906101 = 1119487589
BaseRepresentation
bin1100001001011…
…11011010110101
321002202100220001
412010233122311
5202041443401
614040111301
72345121223
oct604573265
9232670801
10101906101
1152583620
122a165531
131816028b
14d769b13
158e2e601
hex612f6b5

101906101 has 8 divisors (see below), whose sum is σ = 117021600. Its totient is φ = 87765840.

The previous prime is 101906093. The next prime is 101906111. The reversal of 101906101 is 101609101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101906101 - 23 = 101906093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

101906101 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101906111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243586 + ... + 244003.

It is an arithmetic number, because the mean of its divisors is an integer number (14627700).

Almost surely, 2101906101 is an apocalyptic number.

101906101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101906101 is a deficient number, since it is larger than the sum of its proper divisors (15115499).

101906101 is a wasteful number, since it uses less digits than its factorization.

101906101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487619.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 101906101 is about 10094.8551747908. The cubic root of 101906101 is about 467.0894539820.

The spelling of 101906101 in words is "one hundred one million, nine hundred six thousand, one hundred one".

Divisors: 1 11 19 209 487589 5363479 9264191 101906101