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51353366132 = 2242130494873
BaseRepresentation
bin101111110100111001…
…100010111001110100
311220112220102021221102
4233310321202321310
51320132430204012
635331424505232
73465404260415
oct576471427164
9156486367842
1051353366132
111a862700062
129b5217b218
134ac52712a3
1426b238380c
1515085c72c2
hexbf4e62e74

51353366132 has 12 divisors (see below), whose sum is σ = 90081857796. Its totient is φ = 25615692480.

The previous prime is 51353366101. The next prime is 51353366143. The reversal of 51353366132 is 23166335315.

It can be written as a sum of positive squares in 2 ways, for example, as 18822193636 + 32531172496 = 137194^2 + 180364^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15245753 + ... + 15249120.

It is an arithmetic number, because the mean of its divisors is an integer number (7506821483).

Almost surely, 251353366132 is an apocalyptic number.

It is an amenable number.

51353366132 is a deficient number, since it is larger than the sum of its proper divisors (38728491664).

51353366132 is a wasteful number, since it uses less digits than its factorization.

51353366132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30495298 (or 30495296 counting only the distinct ones).

The product of its digits is 145800, while the sum is 38.

The spelling of 51353366132 in words is "fifty-one billion, three hundred fifty-three million, three hundred sixty-six thousand, one hundred thirty-two".

Divisors: 1 2 4 421 842 1684 30494873 60989746 121979492 12838341533 25676683066 51353366132