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1018990597120 = 21051722875119
BaseRepresentation
bin11101101010000001001…
…00101001010000000000
310121102012012120201021221
432311000210221100000
5113143343043101440
62100041240524424
7133422352110256
oct16650044512000
93542165521257
101018990597120
11363173699661
121455a1a80714
13751237c3462
14374686545d6
151b78da94d4a
hexed40929400

1018990597120 has 176 divisors, whose sum is σ = 2589808066560. Its totient is φ = 383377342464.

The previous prime is 1018990597109. The next prime is 1018990597127. The reversal of 1018990597120 is 217950998101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018990597127) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 199057921 + ... + 199063039.

It is an arithmetic number, because the mean of its divisors is an integer number (14714818560).

Almost surely, 21018990597120 is an apocalyptic number.

1018990597120 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 1018990597120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1294904033280).

1018990597120 is an abundant number, since it is smaller than the sum of its proper divisors (1570817469440).

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

1018990597120 is a wasteful number, since it uses less digits than its factorization.

1018990597120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7448 (or 7430 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 52.

The spelling of 1018990597120 in words is "one trillion, eighteen billion, nine hundred ninety million, five hundred ninety-seven thousand, one hundred twenty".