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141981784940 = 2257099089247
BaseRepresentation
bin1000010000111011000…
…1100001101101101100
3111120110221202222121102
42010032301201231230
54311234314104230
6145120414222232
713154304154652
oct2041661415554
9446427688542
10141981784940
115523a01a536
12236254b4978
131050932c4c8
146c2c904dd2
153a5ebd7045
hex210ec61b6c

141981784940 has 12 divisors (see below), whose sum is σ = 298161748416. Its totient is φ = 56792713968.

The previous prime is 141981784939. The next prime is 141981784969. The reversal of 141981784940 is 49487189141.

It is a super-3 number, since 3×1419817849403 (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3549544604 + ... + 3549544643.

It is an arithmetic number, because the mean of its divisors is an integer number (24846812368).

Almost surely, 2141981784940 is an apocalyptic number.

141981784940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141981784940 is an abundant number, since it is smaller than the sum of its proper divisors (156179963476).

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

141981784940 is a wasteful number, since it uses less digits than its factorization.

141981784940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7099089256 (or 7099089254 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 56.

The spelling of 141981784940 in words is "one hundred forty-one billion, nine hundred eighty-one million, seven hundred eighty-four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 7099089247 14198178494 28396356988 35495446235 70990892470 141981784940