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38042629 = 41927869
BaseRepresentation
bin1001000100011…
…1110000000101
32122120202200021
42101013300011
534214331004
63435215141
7641233312
oct221076005
978522607
1038042629
111a523a99
12108a74b1
137b5c941
1450a3d09
153516d54
hex2447c05

38042629 has 4 divisors (see below), whose sum is σ = 38970540. Its totient is φ = 37114720.

The previous prime is 38042603. The next prime is 38042633. The reversal of 38042629 is 92624083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92624083 = 671382449.

It can be written as a sum of positive squares in 2 ways, for example, as 5244100 + 32798529 = 2290^2 + 5727^2 .

It is a cyclic number.

It is not a de Polignac number, because 38042629 - 25 = 38042597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38042594 and 38042603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38042639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463894 + ... + 463975.

It is an arithmetic number, because the mean of its divisors is an integer number (9742635).

Almost surely, 238042629 is an apocalyptic number.

It is an amenable number.

38042629 is a deficient number, since it is larger than the sum of its proper divisors (927911).

38042629 is an equidigital number, since it uses as much as digits as its factorization.

38042629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927910.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 38042629 is about 6167.8707022764. The cubic root of 38042629 is about 336.3232109352.

The spelling of 38042629 in words is "thirty-eight million, forty-two thousand, six hundred twenty-nine".

Divisors: 1 41 927869 38042629