Search a number
-
+
101403209 = 1941130171
BaseRepresentation
bin1100000101101…
…00101001001001
321001210211001102
412002310221021
5201424400314
614021231145
72340625115
oct602645111
9231724042
10101403209
115226a806
1229b624b5
13180153cb
14d678745
158d805de
hex60b4a49

101403209 has 8 divisors (see below), whose sum is σ = 109344480. Its totient is φ = 93722400.

The previous prime is 101403193. The next prime is 101403217. The reversal of 101403209 is 902304101.

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 101403209 - 24 = 101403193 is a prime.

It is a super-2 number, since 2×1014032092 = 20565221590995362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101400209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64307 + ... + 65864.

It is an arithmetic number, because the mean of its divisors is an integer number (13668060).

Almost surely, 2101403209 is an apocalyptic number.

101403209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

101403209 is a deficient number, since it is larger than the sum of its proper divisors (7941271).

101403209 is a wasteful number, since it uses less digits than its factorization.

101403209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130231.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 101403209 is about 10069.9160373858. The cubic root of 101403209 is about 466.3198467908.

The spelling of 101403209 in words is "one hundred one million, four hundred three thousand, two hundred nine".

Divisors: 1 19 41 779 130171 2473249 5337011 101403209