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15210420108 = 22313307931667
BaseRepresentation
bin11100010101001110…
…01001011110001100
31110021001002101210220
432022213021132030
5222122331420413
610553152031340
71045633303062
oct161247113614
943231071726
1015210420108
1164a5981834
122b45b32550
1315853111b0
14a4415a032
155e052b223
hex38a9c978c

15210420108 has 48 divisors (see below), whose sum is σ = 38234676480. Its totient is φ = 4678461504.

The previous prime is 15210420101. The next prime is 15210420157. The reversal of 15210420108 is 80102401251.

15210420108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15210420101) 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 15 ways as a sum of consecutive naturals, for example, 464491 + ... + 496157.

It is an arithmetic number, because the mean of its divisors is an integer number (796555760).

Almost surely, 215210420108 is an apocalyptic number.

It is an amenable number.

15210420108 is an abundant number, since it is smaller than the sum of its proper divisors (23024256372).

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

15210420108 is a wasteful number, since it uses less digits than its factorization.

15210420108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34766 (or 34764 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 15210420108 its reverse (80102401251), we get a palindrome (95312821359).

The spelling of 15210420108 in words is "fifteen billion, two hundred ten million, four hundred twenty thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 3079 6158 9237 12316 18474 31667 36948 40027 63334 80054 95001 120081 126668 160108 190002 240162 380004 411671 480324 823342 1235013 1646684 2470026 4940052 97502693 195005386 292508079 390010772 585016158 1170032316 1267535009 2535070018 3802605027 5070140036 7605210054 15210420108