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1302230423 = 13318873643
BaseRepresentation
bin100110110011110…
…0111010110010111
310100202101011022102
41031213213112113
510131332333143
6333115152315
744161530104
oct11547472627
93322334272
101302230423
11609090a9a
1230414569b
13179a39260
14c4d41aab
15794d10b8
hex4d9e7597

1302230423 has 16 divisors (see below), whose sum is σ = 1449670656. Its totient is φ = 1161652320.

The previous prime is 1302230407. The next prime is 1302230437. The reversal of 1302230423 is 3240322031.

It is a cyclic number.

It is not a de Polignac number, because 1302230423 - 24 = 1302230407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1302230395 and 1302230404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302230453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355640 + ... + 359282.

It is an arithmetic number, because the mean of its divisors is an integer number (90604416).

Almost surely, 21302230423 is an apocalyptic number.

1302230423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1302230423 is a deficient number, since it is larger than the sum of its proper divisors (147440233).

1302230423 is a wasteful number, since it uses less digits than its factorization.

1302230423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4574.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1302230423 is about 36086.4299010030. The cubic root of 1302230423 is about 1092.0166976632.

Adding to 1302230423 its reverse (3240322031), we get a palindrome (4542552454).

The spelling of 1302230423 in words is "one billion, three hundred two million, two hundred thirty thousand, four hundred twenty-three".

Divisors: 1 13 31 403 887 3643 11531 27497 47359 112933 357461 1468129 3231341 42007433 100171571 1302230423