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315215012013 = 311371016014253
BaseRepresentation
bin1001001011001000100…
…01110110000010101101
31010010121212122201110120
410211210101312002231
520131030020341023
6400450251355153
731526215252056
oct4454421660255
91103555581416
10315215012013
11111755724aa0
1251110a52ab9
1323956089bb5
1411383b3572d
1582ed2e58e3
hex49644760ad

315215012013 has 64 divisors (see below), whose sum is σ = 476451811584. Its totient is φ = 183686400000.

The previous prime is 315215012011. The next prime is 315215012023. The reversal of 315215012013 is 310210512513.

It is not a de Polignac number, because 315215012013 - 21 = 315215012011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315215012011) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 74113795 + ... + 74118047.

It is an arithmetic number, because the mean of its divisors is an integer number (7444559556).

Almost surely, 2315215012013 is an apocalyptic number.

315215012013 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

315215012013 is a deficient number, since it is larger than the sum of its proper divisors (161236799571).

315215012013 is a wasteful number, since it uses less digits than its factorization.

315215012013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5006.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 315215012013 its reverse (310210512513), we get a palindrome (625425524526).

The spelling of 315215012013 in words is "three hundred fifteen billion, two hundred fifteen million, twelve thousand, thirteen".

Divisors: 1 3 11 33 37 101 111 303 407 601 1111 1221 1803 3333 3737 4253 6611 11211 12759 19833 22237 41107 46783 60701 66711 123321 140349 157361 182103 244607 429553 472083 667711 733821 1288659 1730971 2003133 2245937 2556053 4725083 5192913 6737811 7668159 14175249 15893461 24705307 28116583 47680383 74115921 84349749 94573961 174828071 258161353 283721883 524484213 774484059 1040313571 2839774883 3120940713 8519324649 9551970061 28655910183 105071670671 315215012013