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49945190400 = 21332527379
BaseRepresentation
bin101110100000111101…
…110010000000000000
311202220202200112222200
4232200331302000000
51304241432043100
634540002433200
73415455054000
oct564075620000
9152822615880
1049945190400
111a1aa837866
12981a662800
13492c5bc401
1425bb344000
151474b69e00
hexba0f72000

49945190400 has 1008 divisors, whose sum is σ = 211275168000. Its totient is φ = 11271536640.

The previous prime is 49945190359. The next prime is 49945190417. The reversal of 49945190400 is 409154994.

49945190400 is a `hidden beast` number, since 4 + 9 + 94 + 519 + 0 + 40 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 632217561 + ... + 632217639.

Almost surely, 249945190400 is an apocalyptic number.

49945190400 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 49945190400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105637584000).

49945190400 is an abundant number, since it is smaller than the sum of its proper divisors (161329977600).

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

49945190400 is an equidigital number, since it uses as much as digits as its factorization.

49945190400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 49945190400 in words is "forty-nine billion, nine hundred forty-five million, one hundred ninety thousand, four hundred".