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50244157440 = 216355631
BaseRepresentation
bin101110110010110010…
…010000000000000000
311210200121020122200000
4232302302100000000
51310400001014230
635025402400000
73426045202011
oct566262200000
9153617218600
1050244157440
111a343576164
1298a2800000
134979517c99
142608d29008
151491022b60
hexbb2c90000

50244157440 has 408 divisors, whose sum is σ = 180915728448. Its totient is φ = 13377208320.

The previous prime is 50244157423. The next prime is 50244157471. The reversal of 50244157440 is 4475144205.

50244157440 is a `hidden beast` number, since 5 + 0 + 2 + 4 + 41 + 574 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 50244157395 and 50244157404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79625925 + ... + 79626555.

Almost surely, 250244157440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50244157440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90457864224).

50244157440 is an abundant number, since it is smaller than the sum of its proper divisors (130671571008).

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

50244157440 is an frugal number, since it uses more digits than its factorization.

50244157440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 36.

The spelling of 50244157440 in words is "fifty billion, two hundred forty-four million, one hundred fifty-seven thousand, four hundred forty".