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51550152241 = 723547958439
BaseRepresentation
bin110000000000101000…
…001110011000110001
311221001121201001201211
4300000220032120301
51321033314332431
635403134400121
73503314031020
oct600050163061
9157047631654
1051550152241
111a953798405
129ba8060041
134b26c71783
1426d056a8b7
15151a9e92b1
hexc00a0e631

51550152241 has 16 divisors (see below), whose sum is σ = 61488230400. Its totient is φ = 42256284048.

The previous prime is 51550152239. The next prime is 51550152263. The reversal of 51550152241 is 14225105515.

It is a cyclic number.

It is not a de Polignac number, because 51550152241 - 21 = 51550152239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51550152211) 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, 852900 + ... + 911338.

It is an arithmetic number, because the mean of its divisors is an integer number (3843014400).

Almost surely, 251550152241 is an apocalyptic number.

It is an amenable number.

51550152241 is a deficient number, since it is larger than the sum of its proper divisors (9938078159).

51550152241 is a wasteful number, since it uses less digits than its factorization.

51550152241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63948.

The product of its (nonzero) digits is 10000, while the sum is 31.

Adding to 51550152241 its reverse (14225105515), we get a palindrome (65775257756).

The spelling of 51550152241 in words is "fifty-one billion, five hundred fifty million, one hundred fifty-two thousand, two hundred forty-one".

Divisors: 1 7 23 161 5479 38353 58439 126017 409073 882119 1344097 9408679 320187281 2241310967 7364307463 51550152241