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38680015623657 = 3149258473347873
BaseRepresentation
bin10001100101101111001001…
…00101110101010111101001
312001221202212210110001110120
420302313210211311113221
520032213132444424112
6214133204234033453
711101352563006212
oct1062674445652751
9161852783401416
1038680015623657
1111363114485181
124408542b78889
131877682105b85
1497a1a0b54409
15471251614e8c
hex232de49755e9

38680015623657 has 16 divisors (see below), whose sum is σ = 51921508291200. Its totient is φ = 25612613514752.

The previous prime is 38680015623617. The next prime is 38680015623659. The reversal of 38680015623657 is 75632651008683.

It is a cyclic number.

It is not a de Polignac number, because 38680015623657 - 218 = 38680015361513 is a prime.

It is a super-2 number, since 2×386800156236572 (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38680015623657.

It is not an unprimeable number, because it can be changed into a prime (38680015623659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9879673 + ... + 13227545.

It is an arithmetic number, because the mean of its divisors is an integer number (3245094268200).

Almost surely, 238680015623657 is an apocalyptic number.

It is an amenable number.

38680015623657 is a deficient number, since it is larger than the sum of its proper divisors (13241492667543).

38680015623657 is a wasteful number, since it uses less digits than its factorization.

38680015623657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373872.

The product of its (nonzero) digits is 43545600, while the sum is 60.

The spelling of 38680015623657 in words is "thirty-eight trillion, six hundred eighty billion, fifteen million, six hundred twenty-three thousand, six hundred fifty-seven".

Divisors: 1 3 149 447 25847 77541 3347873 3851203 10043619 11553609 498833077 1496499231 86532473431 259597420293 12893338541219 38680015623657