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16155031 is a prime number
BaseRepresentation
bin111101101000…
…000110010111
31010101202112111
4331220012113
513113430111
61334131451
7254213134
oct75500627
933352474
1016155031
119134572
1254b0b87
1334682b9
14220758b
151641a21
hexf68197

16155031 has 2 divisors, whose sum is σ = 16155032. Its totient is φ = 16155030.

The previous prime is 16155023. The next prime is 16155043. The reversal of 16155031 is 13055161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16155031 - 23 = 16155023 is a prime.

It is a super-2 number, since 2×161550312 = 521970053221922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16154993 and 16155011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16155011) 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 as a sum of consecutive naturals, namely, 8077515 + 8077516.

It is an arithmetic number, because the mean of its divisors is an integer number (8077516).

Almost surely, 216155031 is an apocalyptic number.

16155031 is the 1798-th centered decagonal number.

16155031 is a deficient number, since it is larger than the sum of its proper divisors (1).

16155031 is an equidigital number, since it uses as much as digits as its factorization.

16155031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 16155031 is about 4019.3321584562. The cubic root of 16155031 is about 252.7954571685.

The spelling of 16155031 in words is "sixteen million, one hundred fifty-five thousand, thirty-one".