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40312970741 = 31241948981
BaseRepresentation
bin100101100010110101…
…110001110111110101
310212001110222002122102
4211202311301313311
51130030110030431
630304114511445
72624664411641
oct454265616765
9125043862572
1040312970741
111610769164a
127990895585
133a55b72154
141d45d99c21
1510ae208dcb
hex962d71df5

40312970741 has 6 divisors (see below), whose sum is σ = 41655339126. Its totient is φ = 39012551400.

The previous prime is 40312970729. The next prime is 40312970743. The reversal of 40312970741 is 14707921304.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26326360516 + 13986610225 = 162254^2 + 118265^2 .

It is a de Polignac number, because none of the positive numbers 2k-40312970741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40312970695 and 40312970704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40312970743) 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, 20973530 + ... + 20975451.

It is an arithmetic number, because the mean of its divisors is an integer number (6942556521).

Almost surely, 240312970741 is an apocalyptic number.

It is an amenable number.

40312970741 is a deficient number, since it is larger than the sum of its proper divisors (1342368385).

40312970741 is an equidigital number, since it uses as much as digits as its factorization.

40312970741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41949043 (or 41949012 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 40312970741 in words is "forty billion, three hundred twelve million, nine hundred seventy thousand, seven hundred forty-one".

Divisors: 1 31 961 41948981 1300418411 40312970741