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385007 = 755001
BaseRepresentation
bin1011101111111101111
3201120010112
41131333233
544310012
612130235
73162320
oct1357757
9646115
10385007
11243297
1216697b
1310631c
14a0447
1579122
hex5dfef

385007 has 4 divisors (see below), whose sum is σ = 440016. Its totient is φ = 330000.

The previous prime is 385001. The next prime is 385013. The reversal of 385007 is 700583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700583 = 1353891.

It is an interprime number because it is at equal distance from previous prime (385001) and next prime (385013).

It is a cyclic number.

It is not a de Polignac number, because 385007 - 28 = 384751 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 385007.

It is not an unprimeable number, because it can be changed into a prime (385001) 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, 27494 + ... + 27507.

It is an arithmetic number, because the mean of its divisors is an integer number (110004).

2385007 is an apocalyptic number.

385007 is a deficient number, since it is larger than the sum of its proper divisors (55009).

385007 is an equidigital number, since it uses as much as digits as its factorization.

385007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55008.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 385007 is about 620.4893230347. The cubic root of 385007 is about 72.7483043814.

The spelling of 385007 in words is "three hundred eighty-five thousand, seven".

Divisors: 1 7 55001 385007