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16397037 = 321821893
BaseRepresentation
bin111110100011…
…001011101101
31010212001111200
4332203023231
513144201122
61343240113
7256241526
oct76431355
933761450
1016397037
11928a378
1255a9039
1335214b7
14226b84d
15168d5ac
hexfa32ed

16397037 has 6 divisors (see below), whose sum is σ = 23684622. Its totient is φ = 10931352.

The previous prime is 16397033. The next prime is 16397039. The reversal of 16397037 is 73079361.

It can be written as a sum of positive squares in only one way, i.e., 10949481 + 5447556 = 3309^2 + 2334^2 .

It is not a de Polignac number, because 16397037 - 22 = 16397033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16396992 and 16397010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16397033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 910938 + ... + 910955.

It is an arithmetic number, because the mean of its divisors is an integer number (3947437).

Almost surely, 216397037 is an apocalyptic number.

It is an amenable number.

16397037 is a deficient number, since it is larger than the sum of its proper divisors (7287585).

16397037 is a wasteful number, since it uses less digits than its factorization.

16397037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821899 (or 1821896 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 36.

The square root of 16397037 is about 4049.3254993888. The cubic root of 16397037 is about 254.0515168203.

The spelling of 16397037 in words is "sixteen million, three hundred ninety-seven thousand, thirty-seven".

Divisors: 1 3 9 1821893 5465679 16397037