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12403145377 = 75948761667
BaseRepresentation
bin10111000110100100…
…01111101010100001
31012000101201001211201
423203102033222201
5200400201123002
65410430241201
7616234665460
oct134322175241
935011631751
1012403145377
115295285777
1224a1956201
13122883799c
148593a09d7
154c8d56087
hex2e348faa1

12403145377 has 16 divisors (see below), whose sum is σ = 14445112320. Its totient is φ = 10429447248.

The previous prime is 12403145357. The next prime is 12403145387. The reversal of 12403145377 is 77354130421.

12403145377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12403145377 - 215 = 12403112609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12403145357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170298 + ... + 231964.

It is an arithmetic number, because the mean of its divisors is an integer number (902819520).

Almost surely, 212403145377 is an apocalyptic number.

It is an amenable number.

12403145377 is a deficient number, since it is larger than the sum of its proper divisors (2041966943).

12403145377 is an equidigital number, since it uses as much as digits as its factorization.

12403145377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62220.

The product of its (nonzero) digits is 70560, while the sum is 37.

Adding to 12403145377 its reverse (77354130421), we get a palindrome (89757275798).

The spelling of 12403145377 in words is "twelve billion, four hundred three million, one hundred forty-five thousand, three hundred seventy-seven".

Divisors: 1 7 59 413 487 3409 28733 61667 201131 431669 3638353 25468471 30031829 210222803 1771877911 12403145377