Search a number
-
+
390234622097 = 2818113847437
BaseRepresentation
bin1011010110110111100…
…10111100100010010001
31101022021010021202212202
411223123302330202101
522343200030401342
6455134334132545
740123243362335
oct5533362744221
91338233252782
10390234622097
111405522a8451
1263768951155
132aa5043ac18
1414c5d2757c5
15a23e433332
hex5adbcbc891

390234622097 has 4 divisors (see below), whose sum is σ = 390248497716. Its totient is φ = 390220746480.

The previous prime is 390234622081. The next prime is 390234622109. The reversal of 390234622097 is 790226432093.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 364675885456 + 25558736641 = 603884^2 + 159871^2 .

It is a cyclic number.

It is not a de Polignac number, because 390234622097 - 24 = 390234622081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390234622007) 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, 6895538 + ... + 6951899.

It is an arithmetic number, because the mean of its divisors is an integer number (97562124429).

Almost surely, 2390234622097 is an apocalyptic number.

It is an amenable number.

390234622097 is a deficient number, since it is larger than the sum of its proper divisors (13875619).

390234622097 is a wasteful number, since it uses less digits than its factorization.

390234622097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13875618.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 390234622097 in words is "three hundred ninety billion, two hundred thirty-four million, six hundred twenty-two thousand, ninety-seven".

Divisors: 1 28181 13847437 390234622097