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320041300340 = 225157101923981
BaseRepresentation
bin1001010100000111111…
…00101011000101110100
31010121002020011120102002
410222003330223011310
520220421033102330
6403005215434432
732056631111366
oct4520374530564
91117066146362
10320041300340
11113801a74933
1252039225a18
1324244c36bc8
14116c0ad8d36
1584d1d86e45
hex4a83f2b174

320041300340 has 24 divisors (see below), whose sum is σ = 676367544552. Its totient is φ = 127201127040.

The previous prime is 320041300339. The next prime is 320041300351. The reversal of 320041300340 is 43003140023.

It can be written as a sum of positive squares in 4 ways, for example, as 9705402256 + 310335898084 = 98516^2 + 557078^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50958851 + ... + 50965130.

It is an arithmetic number, because the mean of its divisors is an integer number (28181981023).

Almost surely, 2320041300340 is an apocalyptic number.

It is an amenable number.

320041300340 is an abundant number, since it is smaller than the sum of its proper divisors (356326244212).

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

320041300340 is a wasteful number, since it uses less digits than its factorization.

320041300340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101924147 (or 101924145 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 320041300340 its reverse (43003140023), we get a palindrome (363044440363).

The spelling of 320041300340 in words is "three hundred twenty billion, forty-one million, three hundred thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 3140 101923981 203847962 407695924 509619905 1019239810 2038479620 16002065017 32004130034 64008260068 80010325085 160020650170 320041300340