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51023133042 = 23710911145289
BaseRepresentation
bin101111100001001101…
…110011100101110010
311212200220000201022020
4233201031303211302
51313443410224132
635234550452310
73454254321630
oct574115634562
9155626021266
1051023133042
111a703257052
129a7b664096
134a71a193ab
142680580350
1514d95e552c
hexbe1373972

51023133042 has 32 divisors (see below), whose sum is σ = 117694262400. Its totient is φ = 14444293248.

The previous prime is 51023133037. The next prime is 51023133127. The reversal of 51023133042 is 24033132015.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5568067 + ... + 5577222.

It is an arithmetic number, because the mean of its divisors is an integer number (3677945700).

Almost surely, 251023133042 is an apocalyptic number.

51023133042 is an abundant number, since it is smaller than the sum of its proper divisors (66671129358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51023133042 is a wasteful number, since it uses less digits than its factorization.

51023133042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11145410.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 51023133042 its reverse (24033132015), we get a palindrome (75056265057).

The spelling of 51023133042 in words is "fifty-one billion, twenty-three million, one hundred thirty-three thousand, forty-two".

Divisors: 1 2 3 6 7 14 21 42 109 218 327 654 763 1526 2289 4578 11145289 22290578 33435867 66871734 78017023 156034046 234051069 468102138 1214836501 2429673002 3644509503 7289019006 8503855507 17007711014 25511566521 51023133042