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2465241681978 = 232136957871221
BaseRepresentation
bin100011110111111011110…
…110101101000000111010
322201200012221011001121200
4203313323312231000322
5310342303332310403
65124303312515030
7343051662360315
oct43677366550072
98650187131550
102465241681978
1187055972a519
1233994454ba76
1314b61857aa5a
148746571997c
15441d73beca3
hex23dfbdad03a

2465241681978 has 12 divisors (see below), whose sum is σ = 5341356977658. Its totient is φ = 821747227320.

The previous prime is 2465241681977. The next prime is 2465241682019. The reversal of 2465241681978 is 8791861425642.

It is a happy number.

2465241681978 is a `hidden beast` number, since 2 + 4 + 6 + 52 + 416 + 81 + 97 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1959767606889 + 505474075089 = 1399917^2 + 710967^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2465241681977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68478935593 + ... + 68478935628.

Almost surely, 22465241681978 is an apocalyptic number.

2465241681978 is an abundant number, since it is smaller than the sum of its proper divisors (2876115295680).

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

2465241681978 is a wasteful number, since it uses less digits than its factorization.

2465241681978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136957871229 (or 136957871226 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 2465241681978 in words is "two trillion, four hundred sixty-five billion, two hundred forty-one million, six hundred eighty-one thousand, nine hundred seventy-eight".

Divisors: 1 2 3 6 9 18 136957871221 273915742442 410873613663 821747227326 1232620840989 2465241681978