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51152200202061 = 3273724841883391
BaseRepresentation
bin10111010000101110011001…
…01110001111011101001101
320201010002202210010001022200
423220113030232033131031
523201034201222431221
6300442555114232113
713526424130511520
oct1350271456173515
9221102683101280
1051152200202061
111533158752a542
1258a1780425639
13227082a04057a
14c8bacb6d2bb7
155da8bd212426
hex2e85ccb8f74d

51152200202061 has 48 divisors (see below), whose sum is σ = 86727525500928. Its totient is φ = 28438656249600.

The previous prime is 51152200202039. The next prime is 51152200202069. The reversal of 51152200202061 is 16020200225115.

51152200202061 is a `hidden beast` number, since 51 + 152 + 200 + 202 + 0 + 61 = 666.

It is not a de Polignac number, because 51152200202061 - 29 = 51152200201549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51152200202069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57462676 + ... + 58346066.

It is an arithmetic number, because the mean of its divisors is an integer number (1806823447936).

Almost surely, 251152200202061 is an apocalyptic number.

It is an amenable number.

51152200202061 is a deficient number, since it is larger than the sum of its proper divisors (35575325298867).

51152200202061 is a wasteful number, since it uses less digits than its factorization.

51152200202061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908282 (or 908279 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 51152200202061 its reverse (16020200225115), we get a palindrome (67172400427176).

The spelling of 51152200202061 in words is "fifty-one trillion, one hundred fifty-two billion, two hundred million, two hundred two thousand, sixty-one".

Divisors: 1 3 7 9 21 37 63 111 259 333 777 2331 24841 74523 173887 223569 521661 883391 919117 1564983 2650173 2757351 6183737 6433819 7950519 8272053 18551211 19301457 32685467 55653633 57904371 98056401 228798269 294169203 686394807 2059184421 21944315831 65832947493 153610210817 197498842479 460830632451 811939685747 1382491897353 2435819057241 5683577800229 7307457171723 17050733400687 51152200202061