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51050424244 = 221710917533929
BaseRepresentation
bin101111100010110101…
…111010011110110100
311212202210101020210111
4233202311322132310
51314022402033434
635241403432404
73455035306051
oct574265723664
9155683336714
1051050424244
111a7176a7366
129a88825704
134a77583431
142684046028
1514dbbd6964
hexbe2d7a7b4

51050424244 has 48 divisors (see below), whose sum is σ = 95540029200. Its totient is φ = 23783694336.

The previous prime is 51050424223. The next prime is 51050424247. The reversal of 51050424244 is 44242405015.

It can be written as a sum of positive squares in 8 ways, for example, as 3346622500 + 47703801744 = 57850^2 + 218412^2 .

It is a super-2 number, since 2×510504242442 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51050424247) 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, 12991272 + ... + 12995200.

It is an arithmetic number, because the mean of its divisors is an integer number (1990417275).

Almost surely, 251050424244 is an apocalyptic number.

It is an amenable number.

51050424244 is a deficient number, since it is larger than the sum of its proper divisors (44489604956).

51050424244 is a wasteful number, since it uses less digits than its factorization.

51050424244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5812 (or 5810 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 51050424244 its reverse (44242405015), we get a palindrome (95292829259).

The spelling of 51050424244 in words is "fifty-one billion, fifty million, four hundred twenty-four thousand, two hundred forty-four".

Divisors: 1 2 4 17 34 68 109 218 436 1753 1853 3506 3706 3929 7012 7412 7858 15716 29801 59602 66793 119204 133586 191077 267172 382154 428261 764308 856522 1713044 3248309 6496618 6887537 7280437 12993236 13775074 14560874 27550148 29121748 117088129 234176258 468352516 750741533 1501483066 3002966132 12762606061 25525212122 51050424244