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38348409 = 3112891187
BaseRepresentation
bin1001001001001…
…0011001111001
32200011022010110
42102102121321
534304122114
63445534533
7643645641
oct222223171
980138113
1038348409
111a712800
1210a14449
137c38b88
145143521
153577759
hex2492679

38348409 has 24 divisors (see below), whose sum is σ = 56881440. Its totient is φ = 22960960.

The previous prime is 38348393. The next prime is 38348419. The reversal of 38348409 is 90484383.

It is not a de Polignac number, because 38348409 - 24 = 38348393 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38348419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31714 + ... + 32900.

It is an arithmetic number, because the mean of its divisors is an integer number (2370060).

Almost surely, 238348409 is an apocalyptic number.

It is an amenable number.

38348409 is a deficient number, since it is larger than the sum of its proper divisors (18533031).

38348409 is a wasteful number, since it uses less digits than its factorization.

38348409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 38348409 is about 6192.6092239055. The cubic root of 38348409 is about 337.2219097449.

The spelling of 38348409 in words is "thirty-eight million, three hundred forty-eight thousand, four hundred nine".

Divisors: 1 3 11 33 89 121 267 363 979 1187 2937 3561 10769 13057 32307 39171 105643 143627 316929 430881 1162073 3486219 12782803 38348409