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106431157 = 717387887
BaseRepresentation
bin1100101100000…
…00001010110101
321102021021002201
412112000022311
5204221244112
614321104501
72431435630
oct626001265
9242237081
10106431157
1155094338
122b788131
1319085b21
14101c6c17
159525257
hex65802b5

106431157 has 8 divisors (see below), whose sum is σ = 122340096. Its totient is φ = 90698352.

The previous prime is 106431151. The next prime is 106431163. The reversal of 106431157 is 751134601.

It is an interprime number because it is at equal distance from previous prime (106431151) and next prime (106431163).

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-106431157 is a prime.

It is a super-2 number, since 2×1064311572 = 22655182360717298, 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 (106431151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42733 + ... + 45154.

It is an arithmetic number, because the mean of its divisors is an integer number (15292512).

Almost surely, 2106431157 is an apocalyptic number.

It is an amenable number.

106431157 is a deficient number, since it is larger than the sum of its proper divisors (15908939).

106431157 is an equidigital number, since it uses as much as digits as its factorization.

106431157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88067.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 106431157 is about 10316.5477268319. The cubic root of 106431157 is about 473.9031489231.

Adding to 106431157 its reverse (751134601), we get a palindrome (857565758).

The spelling of 106431157 in words is "one hundred six million, four hundred thirty-one thousand, one hundred fifty-seven".

Divisors: 1 7 173 1211 87887 615209 15204451 106431157