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51252101234 = 25389113131367
BaseRepresentation
bin101111101110110111…
…010000000001110010
311220021211212111121122
4233232313100001302
51314431014214414
635313410222242
73463034446445
oct575667200162
9156254774548
1051252101234
111a810525264
129b24284982
134aaa2a6b29
1426a2b4365c
1514ee772b8e
hexbeedd0072

51252101234 has 64 divisors (see below), whose sum is σ = 80739141120. Its totient is φ = 24385320960.

The previous prime is 51252101227. The next prime is 51252101237. The reversal of 51252101234 is 43210125215.

It is not an unprimeable number, because it can be changed into a prime (51252101237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139651319 + ... + 139651685.

It is an arithmetic number, because the mean of its divisors is an integer number (1261549080).

Almost surely, 251252101234 is an apocalyptic number.

51252101234 is a deficient number, since it is larger than the sum of its proper divisors (29487039886).

51252101234 is a wasteful number, since it uses less digits than its factorization.

51252101234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 51252101234 its reverse (43210125215), we get a palindrome (94462226449).

The spelling of 51252101234 in words is "fifty-one billion, two hundred fifty-two million, one hundred one thousand, two hundred thirty-four".

Divisors: 1 2 53 89 106 113 131 178 226 262 367 734 4717 5989 6943 9434 10057 11659 11978 13886 14803 19451 20114 23318 29606 32663 38902 41471 48077 65326 82942 96154 533021 617927 784559 1066042 1235854 1317467 1569118 1731139 2197963 2548081 2634934 3462278 3690919 4278853 4395926 5096162 5432701 7381838 8557706 10865402 69825751 139651502 195618707 226779209 287933153 391237414 453558418 483510389 575866306 967020778 25626050617 51252101234