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38490151 = 715593527
BaseRepresentation
bin1001001011010…
…1000000100111
32200102111120011
42102311000213
534323141101
63452551051
7645106120
oct222650047
980374504
1038490151
111a7aa247
1210a82487
137c8854b
14517d047
1535a4751
hex24b5027

38490151 has 8 divisors (see below), whose sum is σ = 44029440. Its totient is φ = 32961048.

The previous prime is 38490149. The next prime is 38490157. The reversal of 38490151 is 15109483.

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

It is a cyclic number.

It is not a de Polignac number, because 38490151 - 21 = 38490149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38490157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9150 + ... + 12676.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 238490151 is an apocalyptic number.

38490151 is a deficient number, since it is larger than the sum of its proper divisors (5539289).

38490151 is a wasteful number, since it uses less digits than its factorization.

38490151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 38490151 is about 6204.0431171938. The cubic root of 38490151 is about 337.6368747064.

The spelling of 38490151 in words is "thirty-eight million, four hundred ninety thousand, one hundred fifty-one".

Divisors: 1 7 1559 3527 10913 24689 5498593 38490151