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38343121 = 1919910141
BaseRepresentation
bin1001001001000…
…1000111010001
32200011000212121
42102101013101
534303434441
63445454241
7643624345
oct222210721
980130777
1038343121
111a709833
1210a11381
137c3664b
145141625
153575dd1
hex24911d1

38343121 has 8 divisors (see below), whose sum is σ = 40568000. Its totient is φ = 36138960.

The previous prime is 38343103. The next prime is 38343127. The reversal of 38343121 is 12134383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38343121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38343127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290 + ... + 8851.

It is an arithmetic number, because the mean of its divisors is an integer number (5071000).

Almost surely, 238343121 is an apocalyptic number.

It is an amenable number.

38343121 is a deficient number, since it is larger than the sum of its proper divisors (2224879).

38343121 is a wasteful number, since it uses less digits than its factorization.

38343121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10359.

The product of its digits is 1728, while the sum is 25.

The square root of 38343121 is about 6192.1822486099. The cubic root of 38343121 is about 337.2064087852.

The spelling of 38343121 in words is "thirty-eight million, three hundred forty-three thousand, one hundred twenty-one".

Divisors: 1 19 199 3781 10141 192679 2018059 38343121