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15420014014 = 230612518787
BaseRepresentation
bin11100101110001101…
…01011110110111110
31110210122110212121011
432113012223312332
5223040010422024
611030040225434
71054056646036
oct162706536676
943718425534
1015420014014
1165a3217839
122ba416b27a
1315b9877262
14a63d188c6
15603b2d094
hex3971abdbe

15420014014 has 8 divisors (see below), whose sum is σ = 23137586568. Its totient is φ = 7707485160.

The previous prime is 15420014003. The next prime is 15420014041. The reversal of 15420014014 is 41041002451.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1253272 + ... + 1265515.

It is an arithmetic number, because the mean of its divisors is an integer number (2892198321).

Almost surely, 215420014014 is an apocalyptic number.

15420014014 is a deficient number, since it is larger than the sum of its proper divisors (7717572554).

15420014014 is a wasteful number, since it uses less digits than its factorization.

15420014014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521850.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 15420014014 its reverse (41041002451), we get a palindrome (56461016465).

The spelling of 15420014014 in words is "fifteen billion, four hundred twenty million, fourteen thousand, fourteen".

Divisors: 1 2 3061 6122 2518787 5037574 7710007007 15420014014