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12380472811 = 730717093371
BaseRepresentation
bin10111000011110111…
…10000010111101011
31011221211001011221001
423201323300113223
5200323400112221
65404300255431
7615541165630
oct134173602753
934854034831
1012380472811
1152834aa513
122496241577
131223c29c75
1485637c187
154c6d78391
hex2e1ef05eb

12380472811 has 16 divisors (see below), whose sum is σ = 14207719680. Its totient is φ = 10567942560.

The previous prime is 12380472803. The next prime is 12380472817. The reversal of 12380472811 is 11827408321.

It is not a de Polignac number, because 12380472811 - 23 = 12380472803 is a prime.

It is a super-2 number, since 2×123804728112 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12380472817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3670956 + ... + 3674326.

It is an arithmetic number, because the mean of its divisors is an integer number (887982480).

Almost surely, 212380472811 is an apocalyptic number.

12380472811 is a deficient number, since it is larger than the sum of its proper divisors (1827246869).

12380472811 is a wasteful number, since it uses less digits than its factorization.

12380472811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5394.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 12380472811 in words is "twelve billion, three hundred eighty million, four hundred seventy-two thousand, eight hundred eleven".

Divisors: 1 7 307 1709 2149 3371 11963 23597 524663 1034897 3672641 5761039 7244279 40327273 1768638973 12380472811