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254745248421 = 31715113305761
BaseRepresentation
bin1110110101000000000…
…0000000001010100101
3220100112122010110012210
43231100000000022211
513133204240422141
6313010042434033
724255552612156
oct3552000001245
9810478113183
10254745248421
1199045062664
1241455802919
131b03a2033b1
14c488b1b92d
15695e6ed916
hex3b500002a5

254745248421 has 16 divisors (see below), whose sum is σ = 359878474368. Its totient is φ = 159734323200.

The previous prime is 254745248411. The next prime is 254745248423. The reversal of 254745248421 is 124842547452.

It is not a de Polignac number, because 254745248421 - 26 = 254745248357 is a prime.

It is a super-3 number, since 3×2547452484213 (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254745248423) 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, 1575820 + ... + 1729941.

It is an arithmetic number, because the mean of its divisors is an integer number (22492404648).

Almost surely, 2254745248421 is an apocalyptic number.

It is an amenable number.

254745248421 is a deficient number, since it is larger than the sum of its proper divisors (105133225947).

254745248421 is a wasteful number, since it uses less digits than its factorization.

254745248421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307292.

The product of its digits is 2867200, while the sum is 48.

The spelling of 254745248421 in words is "two hundred fifty-four billion, seven hundred forty-five million, two hundred forty-eight thousand, four hundred twenty-one".

Divisors: 1 3 17 51 1511 4533 25687 77061 3305761 9917283 56197937 168593811 4995004871 14985014613 84915082807 254745248421