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245051025553 = 1747213053329
BaseRepresentation
bin1110010000111000101…
…1011110100010010001
3212102112000201220110101
43210032023132202101
513003331030304203
6304324101532401
723463410230555
oct3441613364221
9772460656411
10245051025553
1194a1aa08524
123b5ab114101
131a153987449
14bc09433865
1565935e141d
hex390e2de891

245051025553 has 8 divisors (see below), whose sum is σ = 259520836680. Its totient is φ = 230587330560.

The previous prime is 245051025551. The next prime is 245051025563. The reversal of 245051025553 is 355520150542.

It can be written as a sum of positive squares in 4 ways, for example, as 34634326609 + 210416698944 = 186103^2 + 458712^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245051025553 - 21 = 245051025551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245051025551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1446408 + ... + 1606921.

It is an arithmetic number, because the mean of its divisors is an integer number (32440104585).

Almost surely, 2245051025553 is an apocalyptic number.

It is an amenable number.

245051025553 is a deficient number, since it is larger than the sum of its proper divisors (14469811127).

245051025553 is a wasteful number, since it uses less digits than its factorization.

245051025553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058067.

The product of its (nonzero) digits is 150000, while the sum is 37.

The spelling of 245051025553 in words is "two hundred forty-five billion, fifty-one million, twenty-five thousand, five hundred fifty-three".

Divisors: 1 17 4721 80257 3053329 51906593 14414766209 245051025553