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10211118387 = 323147987223
BaseRepresentation
bin10011000001010000…
…10100110100110011
3222100122000120002220
421200220110310303
5131403021242022
64405123412123
7511020034311
oct114050246463
928318016086
1010211118387
11436aa01418
121b8b824043
13c696683b2
146cc1db0b1
153eb6b185c
hex260a14d33

10211118387 has 8 divisors (see below), whose sum is σ = 14206773504. Its totient is φ = 6511437768.

The previous prime is 10211118349. The next prime is 10211118397. The reversal of 10211118387 is 78381111201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10211118387 - 226 = 10144009523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10211118397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73993543 + ... + 73993680.

It is an arithmetic number, because the mean of its divisors is an integer number (1775846688).

Almost surely, 210211118387 is an apocalyptic number.

10211118387 is a deficient number, since it is larger than the sum of its proper divisors (3995655117).

10211118387 is a wasteful number, since it uses less digits than its factorization.

10211118387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147987249.

The product of its (nonzero) digits is 2688, while the sum is 33.

Adding to 10211118387 its reverse (78381111201), we get a palindrome (88592229588).

The spelling of 10211118387 in words is "ten billion, two hundred eleven million, one hundred eighteen thousand, three hundred eighty-seven".

Divisors: 1 3 23 69 147987223 443961669 3403706129 10211118387