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49230290641 = 7229210932
BaseRepresentation
bin101101110110010110…
…101001111011010001
311201001221110212212211
4231312112221323101
51301310423300031
634341023552121
73361654365100
oct556626517321
9151057425784
1049230290641
1119973241014
12965b15b641
1348474641bc
14255040c037
151432002bb1
hexb765a9ed1

49230290641 has 27 divisors (see below), whose sum is σ = 59365052721. Its totient is φ = 40705033824.

The previous prime is 49230290617. The next prime is 49230290653. The reversal of 49230290641 is 14609203294.

The square root of 49230290641 is 221879.

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

It can be written as a sum of positive squares in 4 ways, for example, as 19885230225 + 29345060416 = 141015^2 + 171304^2 .

It is not a de Polignac number, because 49230290641 - 25 = 49230290609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49230290594 and 49230290603.

It is not an unprimeable number, because it can be changed into a prime (49230291641) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 45040891 + ... + 45041983.

Almost surely, 249230290641 is an apocalyptic number.

49230290641 is the 221879-th square number.

49230290641 is the 110940-th centered octagonal number.

It is an amenable number.

49230290641 is a deficient number, since it is larger than the sum of its proper divisors (10134762080).

49230290641 is an frugal number, since it uses more digits than its factorization.

49230290641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 49230290641 in words is "forty-nine billion, two hundred thirty million, two hundred ninety thousand, six hundred forty-one".

Divisors: 1 7 29 49 203 841 1093 1421 5887 7651 31697 41209 53557 221879 919213 1194649 1553153 6434491 8362543 34644821 45041437 58537801 242513747 1004699809 1697596229 7032898663 49230290641