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31099467253 = 531831320471
BaseRepresentation
bin11100111101101011…
…000011010111110101
32222021101010121220111
4130331223003113311
51002142430423003
622141545303021
72150450052511
oct347553032765
988241117814
1031099467253
1112209925058
12603b194a71
132c180ba43a
141710489141
15c20406e6d
hex73dac35f5

31099467253 has 8 divisors (see below), whose sum is σ = 31703654016. Its totient is φ = 30495925200.

The previous prime is 31099467247. The next prime is 31099467283. The reversal of 31099467253 is 35276499013.

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 31099467253 - 25 = 31099467221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31099467197 and 31099467206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31099467233) 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, 63193 + ... + 257278.

It is an arithmetic number, because the mean of its divisors is an integer number (3962956752).

Almost surely, 231099467253 is an apocalyptic number.

It is an amenable number.

31099467253 is a deficient number, since it is larger than the sum of its proper divisors (604186763).

31099467253 is a wasteful number, since it uses less digits than its factorization.

31099467253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322355.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 31099467253 in words is "thirty-one billion, ninety-nine million, four hundred sixty-seven thousand, two hundred fifty-three".

Divisors: 1 53 1831 97043 320471 16984963 586782401 31099467253