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105051897431 = 1315361526067
BaseRepresentation
bin110000111010110010…
…1001011111001010111
3101001011020200022200222
41201311211023321113
53210121241204211
6120132110424555
710406166252305
oct1416545137127
9331136608628
10105051897431
114060906a448
121843980215b
139ba233c270
145127d91275
152aec9e31db
hex187594be57

105051897431 has 8 divisors (see below), whose sum is σ = 113140392624. Its totient is φ = 96964485120.

The previous prime is 105051897397. The next prime is 105051897439. The reversal of 105051897431 is 134798150501.

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 105051897431 - 26 = 105051897367 is a prime.

It is a super-2 number, since 2×1050518974312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105051897439) 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, 63341 + ... + 462726.

It is an arithmetic number, because the mean of its divisors is an integer number (14142549078).

Almost surely, 2105051897431 is an apocalyptic number.

105051897431 is a deficient number, since it is larger than the sum of its proper divisors (8088495193).

105051897431 is a wasteful number, since it uses less digits than its factorization.

105051897431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541441.

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 105051897431 in words is "one hundred five billion, fifty-one million, eight hundred ninety-seven thousand, four hundred thirty-one".

Divisors: 1 13 15361 199693 526067 6838871 8080915187 105051897431