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390127 = 1920533
BaseRepresentation
bin1011111001111101111
3201211011011
41133033233
544441002
612210051
73213253
oct1371757
9654134
10390127
11247121
12169927
1310875a
14a2263
157a8d7
hex5f3ef

390127 has 4 divisors (see below), whose sum is σ = 410680. Its totient is φ = 369576.

The previous prime is 390119. The next prime is 390151. The reversal of 390127 is 721093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 721093 = 3719489.

It is a cyclic number.

It is not a de Polignac number, because 390127 - 23 = 390119 is a prime.

It is a super-2 number, since 2×3901272 = 304398152258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 390098 and 390107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390107) 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, 10248 + ... + 10285.

It is an arithmetic number, because the mean of its divisors is an integer number (102670).

2390127 is an apocalyptic number.

390127 is a deficient number, since it is larger than the sum of its proper divisors (20553).

390127 is a wasteful number, since it uses less digits than its factorization.

390127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20552.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 390127 is about 624.6014729409. The cubic root of 390127 is about 73.0693654802.

The spelling of 390127 in words is "three hundred ninety thousand, one hundred twenty-seven".

Divisors: 1 19 20533 390127