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238075482551 = 23109516718379
BaseRepresentation
bin1101110110111001100…
…1111001000110110111
3211202111220000121100212
43131232121321012313
512400034310420201
6301211555500035
723125506132524
oct3355631710667
9752456017325
10238075482551
1191a70448855
123a182bb761b
13195b17654ca
14b746c4214b
1562d6008abb
hex376e6791b7

238075482551 has 16 divisors (see below), whose sum is σ = 250767897600. Its totient is φ = 225579217248.

The previous prime is 238075482521. The next prime is 238075482559. The reversal of 238075482551 is 155284570832.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-238075482551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238075482551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238075482559) 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, 12944480 + ... + 12962858.

It is an arithmetic number, because the mean of its divisors is an integer number (15672993600).

Almost surely, 2238075482551 is an apocalyptic number.

238075482551 is a deficient number, since it is larger than the sum of its proper divisors (12692415049).

238075482551 is a wasteful number, since it uses less digits than its factorization.

238075482551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23678.

The product of its (nonzero) digits is 2688000, while the sum is 50.

The spelling of 238075482551 in words is "two hundred thirty-eight billion, seventy-five million, four hundred eighty-two thousand, five hundred fifty-one".

Divisors: 1 23 109 2507 5167 18379 118841 422717 563203 2003311 12953669 46076153 94964293 2184178739 10351107937 238075482551