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51423067224 = 23321987359441
BaseRepresentation
bin101111111001000011…
…011011110001011000
311220201202120110212100
4233321003123301120
51320303301122344
635342354443400
73500211600534
oct577103336130
9156652513770
1051423067224
111a898a87571
129b71593560
134b06836a39
1426bb728bc4
15150e794569
hexbf90dbc58

51423067224 has 48 divisors (see below), whose sum is σ = 139341285720. Its totient is φ = 17132348160.

The previous prime is 51423067187. The next prime is 51423067229. The reversal of 51423067224 is 42276032415.

51423067224 is a `hidden beast` number, since 5 + 1 + 423 + 0 + 6 + 7 + 224 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51423067229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36657 + ... + 322784.

Almost surely, 251423067224 is an apocalyptic number.

It is an amenable number.

51423067224 is an abundant number, since it is smaller than the sum of its proper divisors (87918218496).

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

51423067224 is a wasteful number, since it uses less digits than its factorization.

51423067224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361440 (or 361433 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

Adding to 51423067224 its reverse (42276032415), we get a palindrome (93699099639).

The spelling of 51423067224 in words is "fifty-one billion, four hundred twenty-three million, sixty-seven thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1987 3974 5961 7948 11922 15896 17883 23844 35766 47688 71532 143064 359441 718882 1078323 1437764 2156646 2875528 3234969 4313292 6469938 8626584 12939876 25879752 714209267 1428418534 2142627801 2856837068 4285255602 5713674136 6427883403 8570511204 12855766806 17141022408 25711533612 51423067224