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5131205454 = 231619352813
BaseRepresentation
bin1001100011101011…
…11111101101001110
3111020121021020121110
410301311333231032
541002042033304
62205055312450
7241104345444
oct46165775516
914217236543
105131205454
1121a3482671
12bb251b726
1363a0a9c5b
14369696b94
15200722289
hex131d7fb4e

5131205454 has 16 divisors (see below), whose sum is σ = 10263238992. Its totient is φ = 1710263808.

The previous prime is 5131205423. The next prime is 5131205461. The reversal of 5131205454 is 4545021315.

It is a super-2 number, since 2×51312054542 = 52658538822318692232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70752 + ... + 123564.

It is an arithmetic number, because the mean of its divisors is an integer number (641452437).

Almost surely, 25131205454 is an apocalyptic number.

5131205454 is an abundant number, since it is smaller than the sum of its proper divisors (5132033538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5131205454 is a wasteful number, since it uses less digits than its factorization.

5131205454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69011.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 5131205454 is about 71632.4329755733. The cubic root of 5131205454 is about 1724.8042014269.

Adding to 5131205454 its reverse (4545021315), we get a palindrome (9676226769).

The spelling of 5131205454 in words is "five billion, one hundred thirty-one million, two hundred five thousand, four hundred fifty-four".

Divisors: 1 2 3 6 16193 32386 48579 52813 97158 105626 158439 316878 855200909 1710401818 2565602727 5131205454