Search a number
-
+
121243032310 = 2520895803879
BaseRepresentation
bin111000011101010100…
…1011101101011110110
3102120221122011012021011
41300322221131223312
53441301204013220
6131410454542434
711521341525211
oct1607251355366
9376848135234
10121243032310
1147467592754
121b5b8067a1a
13b58289764a
145c22478778
15324919165a
hex1c3aa5daf6

121243032310 has 16 divisors (see below), whose sum is σ = 218341965600. Its totient is φ = 48473989056.

The previous prime is 121243032277. The next prime is 121243032311. The reversal of 121243032310 is 13230342121.

It is a super-2 number, since 2×1212430323102 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121243032311) 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, 2881050 + ... + 2922829.

It is an arithmetic number, because the mean of its divisors is an integer number (13646372850).

Almost surely, 2121243032310 is an apocalyptic number.

121243032310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121243032310 is a deficient number, since it is larger than the sum of its proper divisors (97098933290).

121243032310 is a wasteful number, since it uses less digits than its factorization.

121243032310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5805975.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121243032310 its reverse (13230342121), we get a palindrome (134473374431).

The spelling of 121243032310 in words is "one hundred twenty-one billion, two hundred forty-three million, thirty-two thousand, three hundred ten".

Divisors: 1 2 5 10 2089 4178 10445 20890 5803879 11607758 29019395 58038790 12124303231 24248606462 60621516155 121243032310