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20122401434 = 2157293218717
BaseRepresentation
bin10010101111011000…
…110111101010011010
31220221100211220110012
4102233120313222122
5312202313321214
613124420521522
71311436406252
oct225730675232
956840756405
1020122401434
118596631033
123a96b502a2
131b88b62915
14d8c668962
157cb89803e
hex4af637a9a

20122401434 has 16 divisors (see below), whose sum is σ = 30479665608. Its totient is φ = 9962951232.

The previous prime is 20122401433. The next prime is 20122401449. The reversal of 20122401434 is 43410422102.

It can be written as a sum of positive squares in 4 ways, for example, as 16204017025 + 3918384409 = 127295^2 + 62597^2 .

It is a super-2 number, since 2×201224014342 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20122401433) 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, 17357 + ... + 201360.

Almost surely, 220122401434 is an apocalyptic number.

20122401434 is a deficient number, since it is larger than the sum of its proper divisors (10357264174).

20122401434 is a wasteful number, since it uses less digits than its factorization.

20122401434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219169.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20122401434 its reverse (43410422102), we get a palindrome (63532823536).

The spelling of 20122401434 in words is "twenty billion, one hundred twenty-two million, four hundred one thousand, four hundred thirty-four".

Divisors: 1 2 157 293 314 586 46001 92002 218717 437434 34338569 64084081 68677138 128168162 10061200717 20122401434