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106203431 = 379972879
BaseRepresentation
bin1100101010010…
…00100100100111
321101211200201102
412111020210213
5204142002211
614312150315
72426466665
oct625104447
9241750642
10106203431
1154a49234
122b69839b
1319006289
1410167c35
1594cca3b
hex6548927

106203431 has 8 divisors (see below), whose sum is σ = 109221120. Its totient is φ = 103193568.

The previous prime is 106203353. The next prime is 106203479. The reversal of 106203431 is 134302601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-106203431 is a prime.

It is a super-2 number, since 2×1062034312 = 22558337512343522, which 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 (106203931) 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, 35450 + ... + 38328.

It is an arithmetic number, because the mean of its divisors is an integer number (13652640).

Almost surely, 2106203431 is an apocalyptic number.

106203431 is a deficient number, since it is larger than the sum of its proper divisors (3017689).

106203431 is an equidigital number, since it uses as much as digits as its factorization.

106203431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 106203431 is about 10305.5048881654. The cubic root of 106203431 is about 473.5649110933.

The spelling of 106203431 in words is "one hundred six million, two hundred three thousand, four hundred thirty-one".

Divisors: 1 37 997 2879 36889 106523 2870363 106203431