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382743121181 = 1997223992753
BaseRepresentation
bin1011001000111010100…
…01001000110100011101
31100120221000201002120212
411210131101020310131
522232324214334211
6451455121222205
736436505564651
oct5443521106435
91316830632525
10382743121181
11138358571983
1262217a91965
132a128367545
141474c336a61
159e518ce38b
hex591d448d1d

382743121181 has 16 divisors (see below), whose sum is σ = 407227161600. Its totient is φ = 358696470528.

The previous prime is 382743121139. The next prime is 382743121231. The reversal of 382743121181 is 181121347283.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-382743121181 is a prime.

It is a super-2 number, since 2×3827431211812 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382743121381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4080101 + ... + 4172853.

It is an arithmetic number, because the mean of its divisors is an integer number (25451697600).

Almost surely, 2382743121181 is an apocalyptic number.

It is an amenable number.

382743121181 is a deficient number, since it is larger than the sum of its proper divisors (24484040419).

382743121181 is a wasteful number, since it uses less digits than its factorization.

382743121181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95108.

The product of its digits is 64512, while the sum is 41.

The spelling of 382743121181 in words is "three hundred eighty-two billion, seven hundred forty-three million, one hundred twenty-one thousand, one hundred eighty-one".

Divisors: 1 19 97 1843 2239 42541 92753 217183 1762307 4126477 8997041 170943779 207673967 3945805373 20144374799 382743121181