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51140331354 = 23710711379691
BaseRepresentation
bin101111101000001100…
…111000011101011010
311220000001120000011110
4233220030320131122
51314213411100404
635254334441150
73460206433650
oct575014703532
9156001500143
1051140331354
111a763424962
129ab29631b6
134a900a1cc8
142691d6add0
1514e4a45b89
hexbe833875a

51140331354 has 32 divisors (see below), whose sum is σ = 117984646656. Its totient is φ = 14474965680.

The previous prime is 51140331349. The next prime is 51140331371. The reversal of 51140331354 is 45313304115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5685352 + ... + 5694339.

It is an arithmetic number, because the mean of its divisors is an integer number (3687020208).

Almost surely, 251140331354 is an apocalyptic number.

51140331354 is an abundant number, since it is smaller than the sum of its proper divisors (66844315302).

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

51140331354 is a wasteful number, since it uses less digits than its factorization.

51140331354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11379810.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 51140331354 its reverse (45313304115), we get a palindrome (96453635469).

The spelling of 51140331354 in words is "fifty-one billion, one hundred forty million, three hundred thirty-one thousand, three hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 107 214 321 642 749 1498 2247 4494 11379691 22759382 34139073 68278146 79657837 159315674 238973511 477947022 1217626937 2435253874 3652880811 7305761622 8523388559 17046777118 25570165677 51140331354