Search a number
-
+
15430481660 = 2251170138553
BaseRepresentation
bin11100101111011101…
…00111011011111100
31110211101011200111202
432113232213123330
5223100200403120
611031052435032
71054244633666
oct162756473374
943741150452
1015430481660
1165a9117290
122ba7778a78
1315bbaa0929
14a65481536
156049e9875
hex397ba76fc

15430481660 has 24 divisors (see below), whose sum is σ = 35349831216. Its totient is φ = 5611084160.

The previous prime is 15430481659. The next prime is 15430481779. The reversal of 15430481660 is 6618403451.

It is a congruent number.

It is an unprimeable number.

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, 35069057 + ... + 35069496.

It is an arithmetic number, because the mean of its divisors is an integer number (1472909634).

Almost surely, 215430481660 is an apocalyptic number.

15430481660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15430481660 is an abundant number, since it is smaller than the sum of its proper divisors (19919349556).

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

15430481660 is a wasteful number, since it uses less digits than its factorization.

15430481660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70138573 (or 70138571 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 15430481660 in words is "fifteen billion, four hundred thirty million, four hundred eighty-one thousand, six hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 70138553 140277106 280554212 350692765 701385530 771524083 1402771060 1543048166 3086096332 3857620415 7715240830 15430481660