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20103431441 = 198571234627
BaseRepresentation
bin10010101110010000…
…100000010100010001
31220220001011010111212
4102232100200110101
5312132434301231
613122502145505
71311116230202
oct225620402421
956801133455
1020103431441
118586954655
123a90722295
131b84c50282
14d89d2b5a9
157c9d9c42b
hex4ae420511

20103431441 has 8 divisors (see below), whose sum is σ = 21186216480. Its totient is φ = 19023117408.

The previous prime is 20103431437. The next prime is 20103431461. The reversal of 20103431441 is 14413430102.

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

It is a cyclic number.

It is not a de Polignac number, because 20103431441 - 22 = 20103431437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20103431461) 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, 601031 + ... + 633596.

It is an arithmetic number, because the mean of its divisors is an integer number (2648277060).

Almost surely, 220103431441 is an apocalyptic number.

It is an amenable number.

20103431441 is a deficient number, since it is larger than the sum of its proper divisors (1082785039).

20103431441 is a wasteful number, since it uses less digits than its factorization.

20103431441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235503.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20103431441 its reverse (14413430102), we get a palindrome (34516861543).

The spelling of 20103431441 in words is "twenty billion, one hundred three million, four hundred thirty-one thousand, four hundred forty-one".

Divisors: 1 19 857 16283 1234627 23457913 1058075339 20103431441