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245312542553 = 13472423165701
BaseRepresentation
bin1110010001110111000…
…1000101011101011001
3212110012020211100100012
43210131301011131121
513004400002330203
6304410043051305
723503034131031
oct3443561053531
9773166740305
10245312542553
1195044598081
123b662810b35
131a195c00030
14bc3206a8c1
1565ab54cbd8
hex391dc45759

245312542553 has 16 divisors (see below), whose sum is σ = 269916627456. Its totient is φ = 221531620800.

The previous prime is 245312542511. The next prime is 245312542561. The reversal of 245312542553 is 355245213542.

It is a cyclic number.

It is not a de Polignac number, because 245312542553 - 28 = 245312542297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245312542553.

It is not an unprimeable number, because it can be changed into a prime (245312545553) 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, 1397603 + ... + 1563303.

It is an arithmetic number, because the mean of its divisors is an integer number (16869789216).

Almost surely, 2245312542553 is an apocalyptic number.

It is an amenable number.

245312542553 is a deficient number, since it is larger than the sum of its proper divisors (24604084903).

245312542553 is a wasteful number, since it uses less digits than its factorization.

245312542553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168184.

The product of its digits is 720000, while the sum is 41.

The spelling of 245312542553 in words is "two hundred forty-five billion, three hundred twelve million, five hundred forty-two thousand, five hundred fifty-three".

Divisors: 1 13 47 611 2423 31499 113881 165701 1480453 2154113 7787947 101243311 401493523 5219415799 18870195581 245312542553