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2154134230031 = 71971562098789
BaseRepresentation
bin11111010110001100011…
…001111101010000001111
321121221012022121000021102
4133112030121331100033
5240243131330330111
64325332352253315
7311426311562060
oct37261431752017
97557168530242
102154134230031
11760621684173
122a959b24123b
131281984a2194
1476391336567
153b0799e913b
hex1f58c67d40f

2154134230031 has 8 divisors (see below), whose sum is σ = 2474364483360. Its totient is φ = 1837028174688.

The previous prime is 2154134229997. The next prime is 2154134230033. The reversal of 2154134230031 is 1300324314512.

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

It is a de Polignac number, because none of the positive numbers 2k-2154134230031 is a prime.

It is a super-2 number, since 2×21541342300312 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2154134229976 and 2154134230003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154134230033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781048016 + ... + 781050773.

It is an arithmetic number, because the mean of its divisors is an integer number (309295560420).

Almost surely, 22154134230031 is an apocalyptic number.

2154134230031 is a deficient number, since it is larger than the sum of its proper divisors (320230253329).

2154134230031 is a wasteful number, since it uses less digits than its factorization.

2154134230031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562098993.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 2154134230031 its reverse (1300324314512), we get a palindrome (3454458544543).

It can be divided in two parts, 215413 and 4230031, that added together give a palindrome (4445444).

The spelling of 2154134230031 in words is "two trillion, one hundred fifty-four billion, one hundred thirty-four million, two hundred thirty thousand, thirty-one".

Divisors: 1 7 197 1379 1562098789 10934691523 307733461433 2154134230031