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8154157 = 111395333
BaseRepresentation
bin11111000110110000101101
3120100021101211
4133012300231
54041413112
6450434421
7126211024
oct37066055
916307354
108154157
11466a380
122892a11
1318c665b
1411238bb
15ab10a7
hex7c6c2d

8154157 has 8 divisors (see below), whose sum is σ = 8961120. Its totient is φ = 7358160.

The previous prime is 8154131. The next prime is 8154163. The reversal of 8154157 is 7514518.

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-8154157 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8154127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1138 + ... + 4195.

It is an arithmetic number, because the mean of its divisors is an integer number (1120140).

Almost surely, 28154157 is an apocalyptic number.

It is an amenable number.

8154157 is a deficient number, since it is larger than the sum of its proper divisors (806963).

8154157 is a wasteful number, since it uses less digits than its factorization.

8154157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5483.

The product of its digits is 5600, while the sum is 31.

The square root of 8154157 is about 2855.5484587028. The cubic root of 8154157 is about 201.2764773620.

The spelling of 8154157 in words is "eight million, one hundred fifty-four thousand, one hundred fifty-seven".

Divisors: 1 11 139 1529 5333 58663 741287 8154157