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122320231404 = 22371976641749
BaseRepresentation
bin111000111101011011…
…0101001101111101100
3102200201201002120121220
41301322312221233230
54001002434401104
6132105415023340
711560131545310
oct1617266515754
9380651076556
10122320231404
114796a644338
121b85896ab50
13b6c4ac4067
145cc555db40
1532ada217d9
hex1c7ada9bec

122320231404 has 48 divisors (see below), whose sum is σ = 343355040000. Its totient is φ = 33109235136.

The previous prime is 122320231387. The next prime is 122320231409. The reversal of 122320231404 is 404132023221.

It is a happy number.

It is a super-2 number, since 2×1223202314042 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122320231409) 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, 38319279 + ... + 38322470.

It is an arithmetic number, because the mean of its divisors is an integer number (7153230000).

Almost surely, 2122320231404 is an apocalyptic number.

122320231404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

122320231404 is an abundant number, since it is smaller than the sum of its proper divisors (221034808596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122320231404 is a wasteful number, since it uses less digits than its factorization.

122320231404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76641782 (or 76641780 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 122320231404 its reverse (404132023221), we get a palindrome (526452254625).

The spelling of 122320231404 in words is "one hundred twenty-two billion, three hundred twenty million, two hundred thirty-one thousand, four hundred four".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 228 266 399 532 798 1596 76641749 153283498 229925247 306566996 459850494 536492243 919700988 1072984486 1456193231 1609476729 2145968972 2912386462 3218953458 4368579693 5824772924 6437906916 8737159386 10193352617 17474318772 20386705234 30580057851 40773410468 61160115702 122320231404