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1302012425 = 52737211953
BaseRepresentation
bin100110110011011…
…0010001000001001
310100201222002021102
41031212302020021
510131303344200
6333110351145
744156631410
oct11546621011
93321862242
101302012425
11608a5222a
1230405b4b5
13179990c6c
14c4cc6477
157948b6d5
hex4d9b2209

1302012425 has 48 divisors (see below), whose sum is σ = 1905985152. Its totient is φ = 863654400.

The previous prime is 1302012421. The next prime is 1302012427. The reversal of 1302012425 is 5242102031.

It is not a de Polignac number, because 1302012425 - 22 = 1302012421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1302012397 and 1302012406.

It is not an unprimeable number, because it can be changed into a prime (1302012421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1365749 + ... + 1366701.

It is an arithmetic number, because the mean of its divisors is an integer number (39708024).

Almost surely, 21302012425 is an apocalyptic number.

It is an amenable number.

1302012425 is a deficient number, since it is larger than the sum of its proper divisors (603972727).

1302012425 is a wasteful number, since it uses less digits than its factorization.

1302012425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1302012425 is about 36083.4092762865. The cubic root of 1302012425 is about 1091.9557584374.

Adding to 1302012425 its reverse (5242102031), we get a palindrome (6544114456).

The spelling of 1302012425 in words is "one billion, three hundred two million, twelve thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 37 175 185 211 259 925 953 1055 1295 1477 4765 5275 6475 6671 7385 7807 23825 33355 35261 36925 39035 54649 166775 176305 195175 201083 246827 273245 881525 1005415 1234135 1366225 1407581 5027075 6170675 7037905 7440071 35189525 37200355 52080497 186001775 260402485 1302012425