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315530325431 = 3121990110211
BaseRepresentation
bin1001001011101110001…
…00101010110110110111
31010011102211222022011022
410211313010222312313
520132201230403211
6400541433531355
731540064341136
oct4456704526667
91104384868138
10315530325431
111118a77086a2
125119a573b5b
13239a64b9b99
14113b397391d
15831ad2bbdb
hex497712adb7

315530325431 has 8 divisors (see below), whose sum is σ = 315694217328. Its totient is φ = 315366480000.

The previous prime is 315530325401. The next prime is 315530325433. The reversal of 315530325431 is 134523035513.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-315530325431 is a prime.

It is a super-2 number, since 2×3155303254312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315530325391 and 315530325400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315530325433) 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, 30895916 + ... + 30906126.

It is an arithmetic number, because the mean of its divisors is an integer number (39461777166).

Almost surely, 2315530325431 is an apocalyptic number.

315530325431 is a deficient number, since it is larger than the sum of its proper divisors (163891897).

315530325431 is a wasteful number, since it uses less digits than its factorization.

315530325431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23233.

The product of its (nonzero) digits is 81000, while the sum is 35.

The spelling of 315530325431 in words is "three hundred fifteen billion, five hundred thirty million, three hundred twenty-five thousand, four hundred thirty-one".

Divisors: 1 3121 9901 10211 30901021 31868531 101099111 315530325431