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392948 = 22193509
BaseRepresentation
bin1011111111011110100
3201222000122
41133323310
5100033243
612231112
73224423
oct1377364
9658018
10392948
11249256
1216b498
13109b1a
14a32ba
157b668
hex5fef4

392948 has 12 divisors (see below), whose sum is σ = 692580. Its totient is φ = 195072.

The previous prime is 392929. The next prime is 392957. The reversal of 392948 is 849293.

It can be written as a sum of positive squares in 2 ways, for example, as 209764 + 183184 = 458^2 + 428^2 .

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 392948.

It is an unprimeable number.

392948 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518 + ... + 1026.

It is an arithmetic number, because the mean of its divisors is an integer number (57715).

2392948 is an apocalyptic number.

It is an amenable number.

392948 is a deficient number, since it is larger than the sum of its proper divisors (299632).

392948 is a wasteful number, since it uses less digits than its factorization.

392948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 704 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 392948 is about 626.8556452645. The cubic root of 392948 is about 73.2450636751.

The spelling of 392948 in words is "three hundred ninety-two thousand, nine hundred forty-eight".

Divisors: 1 2 4 193 386 509 772 1018 2036 98237 196474 392948