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20014103154 = 2323473085739
BaseRepresentation
bin10010101000111011…
…101111101001110010
31220122211001210010210
4102220323233221302
5311442102300104
613105551404550
71305653032653
oct225073575162
956584053123
1020014103154
118540491a21
123a66823756
131b6c5a4cb6
14d7c11752a
157c2104989
hex4a8eefa72

20014103154 has 32 divisors (see below), whose sum is σ = 42657269760. Its totient is φ = 6245533712.

The previous prime is 20014103041. The next prime is 20014103171. The reversal of 20014103154 is 45130141002.

It is a self number, because there is not a number n which added to its sum of digits gives 20014103154.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1536384 + ... + 1549355.

It is an arithmetic number, because the mean of its divisors is an integer number (1333039680).

Almost surely, 220014103154 is an apocalyptic number.

20014103154 is an abundant number, since it is smaller than the sum of its proper divisors (22643166606).

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

20014103154 is a wasteful number, since it uses less digits than its factorization.

20014103154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085814.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 20014103154 its reverse (45130141002), we get a palindrome (65144244156).

The spelling of 20014103154 in words is "twenty billion, fourteen million, one hundred three thousand, one hundred fifty-four".

Divisors: 1 2 3 6 23 46 47 69 94 138 141 282 1081 2162 3243 6486 3085739 6171478 9257217 18514434 70971997 141943994 145029733 212915991 290059466 425831982 435089199 870178398 3335683859 6671367718 10007051577 20014103154