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12315228676 = 22554872
BaseRepresentation
bin10110111100000101…
…10111101000000100
31011210021021102210121
423132002313220010
5200210144304201
65354010031324
7614116500532
oct133602675004
934707242717
1012315228676
11524a697643
122478418544
13121356507a
1484b837152
154c128b9a1
hex2de0b7a04

12315228676 has 9 divisors (see below), whose sum is σ = 21552038599. Its totient is φ = 6157503364.

The previous prime is 12315228659. The next prime is 12315228719. The reversal of 12315228676 is 67682251321.

The square root of 12315228676 is 110974.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 194205 + ... + 249691.

Almost surely, 212315228676 is an apocalyptic number.

12315228676 is the 110974-th square number.

It is an amenable number.

12315228676 is a deficient number, since it is larger than the sum of its proper divisors (9236809923).

12315228676 is an frugal number, since it uses more digits than its factorization.

12315228676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110978 (or 55489 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

Adding to 12315228676 its reverse (67682251321), we get a palindrome (79997479997).

The spelling of 12315228676 in words is "twelve billion, three hundred fifteen million, two hundred twenty-eight thousand, six hundred seventy-six".

Divisors: 1 2 4 55487 110974 221948 3078807169 6157614338 12315228676