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51355036030 = 2543491180847
BaseRepresentation
bin101111110100111111…
…111010100101111110
311220120000120010121111
4233310333322211332
51320133342123110
635331524352234
73465424414054
oct576477724576
9156500503544
1051355036030
111a863640741
129b5284567a
134ac57073ac
1426b269a1d4
151508806e8a
hexbf4ffa97e

51355036030 has 16 divisors (see below), whose sum is σ = 92460398400. Its totient is φ = 20537273632.

The previous prime is 51355036021. The next prime is 51355036037. The reversal of 51355036030 is 3063055315.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51355035983 and 51355036001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51355036037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546934 + ... + 633913.

It is an arithmetic number, because the mean of its divisors is an integer number (5778774900).

Almost surely, 251355036030 is an apocalyptic number.

51355036030 is a deficient number, since it is larger than the sum of its proper divisors (41105362370).

51355036030 is a wasteful number, since it uses less digits than its factorization.

51355036030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185203.

The product of its (nonzero) digits is 20250, while the sum is 31.

The spelling of 51355036030 in words is "fifty-one billion, three hundred fifty-five million, thirty-six thousand, thirty".

Divisors: 1 2 5 10 4349 8698 21745 43490 1180847 2361694 5904235 11808470 5135503603 10271007206 25677518015 51355036030