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11938070219880 = 23357247179241327
BaseRepresentation
bin1010110110111000110001…
…1011110100110001101000
31120021021020122021022101110
42231232030123310301220
53031043131434014010
641220135043550320
72341332336403500
oct255561433646150
946237218238343
1011938070219880
1138929a8461442
12140981768b3a0
136879a8202c8c
142d3b3cb0ca00
1515a80b07b120
hexadb8c6f4c68

11938070219880 has 384 divisors, whose sum is σ = 42785716838400. Its totient is φ = 2655713475072.

The previous prime is 11938070219879. The next prime is 11938070219899. The reversal of 11938070219880 is 8891207083911.

It is a self number, because there is not a number n which added to its sum of digits gives 11938070219880.

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 95 ways as a sum of consecutive naturals, for example, 49347777 + ... + 49589103.

It is an arithmetic number, because the mean of its divisors is an integer number (111421137600).

Almost surely, 211938070219880 is an apocalyptic number.

11938070219880 is a gapful number since it is divisible by the number (10) 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 11938070219880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21392858419200).

11938070219880 is an abundant number, since it is smaller than the sum of its proper divisors (30847646618520).

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

11938070219880 is a wasteful number, since it uses less digits than its factorization.

11938070219880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241581 (or 241570 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 57.

The spelling of 11938070219880 in words is "eleven trillion, nine hundred thirty-eight billion, seventy million, two hundred nineteen thousand, eight hundred eighty".