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390055051 = 3137933199
BaseRepresentation
bin10111001111111…
…100010010001011
31000011221211221101
4113033330102023
51244323230201
6102412122231
712444261511
oct2717742213
91004854841
10390055051
111901a3151
12aa766377
1362a6bb09
1439b364b1
152439bd01
hex173fc48b

390055051 has 8 divisors (see below), whose sum is σ = 403712000. Its totient is φ = 376465320.

The previous prime is 390055019. The next prime is 390055087. The reversal of 390055051 is 150550093.

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 390055051 - 25 = 390055019 is a prime.

It is a super-2 number, since 2×3900550512 = 304285885621225202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390055751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4851 + ... + 28348.

It is an arithmetic number, because the mean of its divisors is an integer number (50464000).

Almost surely, 2390055051 is an apocalyptic number.

390055051 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

390055051 is a deficient number, since it is larger than the sum of its proper divisors (13656949).

390055051 is a wasteful number, since it uses less digits than its factorization.

390055051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33609.

The product of its (nonzero) digits is 3375, while the sum is 28.

The square root of 390055051 is about 19749.8114168212. The cubic root of 390055051 is about 730.6487327556.

The spelling of 390055051 in words is "three hundred ninety million, fifty-five thousand, fifty-one".

Divisors: 1 31 379 11749 33199 1029169 12582421 390055051