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103000231221 = 3371042788993
BaseRepresentation
bin101111111101101001…
…0101100110100110101
3100211212021002212202120
41133323102230310311
53141421024344341
6115152340230153
710304304343206
oct1377322546465
9324767085676
10103000231221
113a755a44238
1217b6669b359
1399362752a4
144db16c75ad
152a2c827066
hex17fb4acd35

103000231221 has 16 divisors (see below), whose sum is σ = 141060473664. Its totient is φ = 66803802624.

The previous prime is 103000231199. The next prime is 103000231249. The reversal of 103000231221 is 122132000301.

It is not a de Polignac number, because 103000231221 - 25 = 103000231189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103000231221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103000231291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1112901 + ... + 1201893.

It is an arithmetic number, because the mean of its divisors is an integer number (8816279604).

Almost surely, 2103000231221 is an apocalyptic number.

It is an amenable number.

103000231221 is a deficient number, since it is larger than the sum of its proper divisors (38060242443).

103000231221 is a wasteful number, since it uses less digits than its factorization.

103000231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99460.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 103000231221 its reverse (122132000301), we get a palindrome (225132231522).

The spelling of 103000231221 in words is "one hundred three billion, two hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 3 37 111 10427 31281 88993 266979 385799 1157397 3292741 9878223 927930011 2783790033 34333410407 103000231221