Search a number
-
+
100212331 = 1745712899
BaseRepresentation
bin1011111100100…
…01111001101011
320222120022110211
411332101321223
5201123243311
613535521551
72324535142
oct576217153
9228508424
10100212331
115162700a
12296892b7
13179b934b
14d448759
158be7821
hex5f91e6b

100212331 has 8 divisors (see below), whose sum is σ = 106347600. Its totient is φ = 94103808.

The previous prime is 100212293. The next prime is 100212341. The reversal of 100212331 is 133212001.

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 100212331 - 29 = 100211819 is a prime.

It is a super-2 number, since 2×1002123312 = 20085022568907122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100212341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320 + ... + 14218.

It is an arithmetic number, because the mean of its divisors is an integer number (13293450).

Almost surely, 2100212331 is an apocalyptic number.

100212331 is a deficient number, since it is larger than the sum of its proper divisors (6135269).

100212331 is a wasteful number, since it uses less digits than its factorization.

100212331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13373.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 100212331 is about 10010.6109204184. The cubic root of 100212331 is about 464.4871688530.

Adding to 100212331 its reverse (133212001), we get a palindrome (233424332).

The spelling of 100212331 in words is "one hundred million, two hundred twelve thousand, three hundred thirty-one".

Divisors: 1 17 457 7769 12899 219283 5894843 100212331