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48858239521 = 741323472
BaseRepresentation
bin101101100000001011…
…011001001000100001
311200010000101201200201
4231200023121020201
51300030202131041
634240053345201
73346516120000
oct554013311041
9150100351621
1048858239521
11197a2225553
129576638201
1347b835a100
142516c40c37
15140e510631
hexb602d9221

48858239521 has 45 divisors (see below), whose sum is σ = 61897985331. Its totient is φ = 38545664976.

The previous prime is 48858239519. The next prime is 48858239537. The reversal of 48858239521 is 12593285884.

The square root of 48858239521 is 221039.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7227550225 + 41630689296 = 85015^2 + 204036^2 .

It is not a de Polignac number, because 48858239521 - 21 = 48858239519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48858239321) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 140801670 + ... + 140802016.

Almost surely, 248858239521 is an apocalyptic number.

48858239521 is the 221039-th square number.

48858239521 is the 110520-th centered octagonal number.

It is an amenable number.

48858239521 is a deficient number, since it is larger than the sum of its proper divisors (13039745810).

48858239521 is an frugal number, since it uses more digits than its factorization.

48858239521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 367 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 55.

The spelling of 48858239521 in words is "forty-eight billion, eight hundred fifty-eight million, two hundred thirty-nine thousand, five hundred twenty-one".

Divisors: 1 7 13 49 91 169 343 347 637 1183 2401 2429 4459 4511 8281 17003 31213 31577 57967 58643 119021 120409 221039 405769 410501 833147 842863 1547273 1565317 2873507 5900041 10830911 10957219 20114549 20349121 41300287 76700533 140801843 142443847 289102009 536903731 997106929 3758326117 6979748503 48858239521