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1230084791988 = 2231310376554941
BaseRepresentation
bin10001111001100110110…
…001000101111010110100
311100121001201112220002120
4101321212301011322310
5130123203201320423
62341032042035540
7154604435133603
oct21714661057264
94317051486076
101230084791988
11434748884648
1217a494aa8bb0
138bcc53ca380
1443771d25a3a
1521ee5eb2ee3
hex11e66c45eb4

1230084791988 has 48 divisors (see below), whose sum is σ = 3120991875456. Its totient is φ = 374812986240.

The previous prime is 1230084791981. The next prime is 1230084792029. The reversal of 1230084791988 is 8891974800321.

It is a super-2 number, since 2×12300847919882 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230084791981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38261403 + ... + 38293538.

It is an arithmetic number, because the mean of its divisors is an integer number (65020664072).

Almost surely, 21230084791988 is an apocalyptic number.

It is an amenable number.

1230084791988 is an abundant number, since it is smaller than the sum of its proper divisors (1890907083468).

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

1230084791988 is a wasteful number, since it uses less digits than its factorization.

1230084791988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76555064 (or 76555062 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 60.

The spelling of 1230084791988 in words is "one trillion, two hundred thirty billion, eighty-four million, seven hundred ninety-one thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 103 156 206 309 412 618 1236 1339 2678 4017 5356 8034 16068 76554941 153109882 229664823 306219764 459329646 918659292 995214233 1990428466 2985642699 3980856932 5971285398 7885158923 11942570796 15770317846 23655476769 31540635692 47310953538 94621907076 102507065999 205014131998 307521197997 410028263996 615042395994 1230084791988