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31124100403 = 1123711193363
BaseRepresentation
bin11100111111001001…
…000001010100110011
32222100002111010020101
4130333021001110303
51002220232203103
622144225253231
72151166326334
oct347711012463
988302433211
1031124100403
111222181a330
126047494217
132c20233676
14171385c28b
15c22670a1d
hex73f241533

31124100403 has 8 divisors (see below), whose sum is σ = 33967912896. Its totient is φ = 28282679400.

The previous prime is 31124100383. The next prime is 31124100419. The reversal of 31124100403 is 30400142113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31124100403 - 29 = 31124099891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31124100473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570601 + ... + 622762.

It is an arithmetic number, because the mean of its divisors is an integer number (4245989112).

Almost surely, 231124100403 is an apocalyptic number.

31124100403 is a deficient number, since it is larger than the sum of its proper divisors (2843812493).

31124100403 is a wasteful number, since it uses less digits than its factorization.

31124100403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195745.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31124100403 its reverse (30400142113), we get a palindrome (61524242516).

The spelling of 31124100403 in words is "thirty-one billion, one hundred twenty-four million, one hundred thousand, four hundred three".

Divisors: 1 11 2371 26081 1193363 13126993 2829463673 31124100403