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31140110254 = 2111415459557
BaseRepresentation
bin11101000000000110…
…000101111110101110
32222101012121111121211
4131000012011332232
51002233332012004
622150000345034
72151452366311
oct350006057656
988335544554
1031140110254
111222a864810
12605091517a
132c2364a856
141715a28978
15c23c84504
hex740185fae

31140110254 has 8 divisors (see below), whose sum is σ = 50956544088. Its totient is φ = 14154595560.

The previous prime is 31140110191. The next prime is 31140110263. The reversal of 31140110254 is 45201104113.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1415459557 = 31140110254 / (3 + 1 + 1 + 4 + 0 + 1 + 1 + 0 + 2 + 5 + 4).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 707729757 + ... + 707729800.

It is an arithmetic number, because the mean of its divisors is an integer number (6369568011).

Almost surely, 231140110254 is an apocalyptic number.

31140110254 is a deficient number, since it is larger than the sum of its proper divisors (19816433834).

31140110254 is a wasteful number, since it uses less digits than its factorization.

31140110254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415459570.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 31140110254 its reverse (45201104113), we get a palindrome (76341214367).

The spelling of 31140110254 in words is "thirty-one billion, one hundred forty million, one hundred ten thousand, two hundred fifty-four".

Divisors: 1 2 11 22 1415459557 2830919114 15570055127 31140110254