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51201336030 = 23513131285477
BaseRepresentation
bin101111101011110101…
…100110001011011110
311220011022100100211220
4233223311212023132
51314330020223110
635304354154210
73461550114105
oct575365461336
9156138310756
1051201336030
111a794901649
129b0b282966
134a9c911350
14269a0cb03c
1514ea096370
hexbebd662de

51201336030 has 32 divisors (see below), whose sum is σ = 132335761824. Its totient is φ = 12603405696.

The previous prime is 51201336029. The next prime is 51201336071. The reversal of 51201336030 is 3063310215.

It is a happy number.

It is a super-2 number, since 2×512013360302 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65642349 + ... + 65643128.

It is an arithmetic number, because the mean of its divisors is an integer number (4135492557).

Almost surely, 251201336030 is an apocalyptic number.

51201336030 is an abundant number, since it is smaller than the sum of its proper divisors (81134425794).

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

51201336030 is a wasteful number, since it uses less digits than its factorization.

51201336030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131285500.

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 51201336030 its reverse (3063310215), we get a palindrome (54264646245).

The spelling of 51201336030 in words is "fifty-one billion, two hundred one million, three hundred thirty-six thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 131285477 262570954 393856431 656427385 787712862 1312854770 1706711201 1969282155 3413422402 3938564310 5120133603 8533556005 10240267206 17067112010 25600668015 51201336030