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385142 = 2192571
BaseRepresentation
bin1011110000001110110
3201120022112
41132001312
544311032
612131022
73162602
oct1360166
9646275
10385142
112433aa
12166a72
131063c4
14a0502
15791b2
hex5e076

385142 has 4 divisors (see below), whose sum is σ = 577716. Its totient is φ = 192570.

The previous prime is 385141. The next prime is 385153. The reversal of 385142 is 241583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241583 = 317793.

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 385142.

It is not an unprimeable number, because it can be changed into a prime (385141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96284 + ... + 96287.

It is an arithmetic number, because the mean of its divisors is an integer number (144429).

2385142 is an apocalyptic number.

385142 is a deficient number, since it is larger than the sum of its proper divisors (192574).

385142 is a wasteful number, since it uses less digits than its factorization.

385142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192573.

The product of its digits is 960, while the sum is 23.

The square root of 385142 is about 620.5980986113. The cubic root of 385142 is about 72.7568062817.

It can be divided in two parts, 38514 and 2, that multiplied together give a triangular number (77028 = T392).

The spelling of 385142 in words is "three hundred eighty-five thousand, one hundred forty-two".

Divisors: 1 2 192571 385142