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49923679680 = 263257173137127
BaseRepresentation
bin101110011111101011…
…101110010111000000
311202212021012200211100
4232133223232113000
51304220430222210
634533513414400
73415104163350
oct563753562700
9152767180740
1049923679680
111a199685506
12981340a400
134927cca484
1425b8544b60
151472d1b5c0
hexb9faee5c0

49923679680 has 1344 divisors, whose sum is σ = 222026268672. Its totient is φ = 10032906240.

The previous prime is 49923679667. The next prime is 49923679693. The reversal of 49923679680 is 8697632994.

49923679680 is a `hidden beast` number, since 499 + 2 + 3 + 67 + 9 + 6 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (49923679667) and next prime (49923679693).

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 393099777 + ... + 393099903.

Almost surely, 249923679680 is an apocalyptic number.

49923679680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49923679680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111013134336).

49923679680 is an abundant number, since it is smaller than the sum of its proper divisors (172102588992).

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

49923679680 is a wasteful number, since it uses less digits than its factorization.

49923679680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 49923679680 in words is "forty-nine billion, nine hundred twenty-three million, six hundred seventy-nine thousand, six hundred eighty".