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13248048640 = 2955175019
BaseRepresentation
bin11000101011010010…
…10010111000000000
31021012021112121020011
430111221102320000
5204113000024030
610030331354304
7646204361341
oct142551227000
937167477204
1013248048640
1156891a6032
1226988b2994
1313318b0148
148d96980c8
155280ecb2a
hex315a52e00

13248048640 has 40 divisors (see below), whose sum is σ = 31764272760. Its totient is φ = 5299218432.

The previous prime is 13248048607. The next prime is 13248048683. The reversal of 13248048640 is 4684084231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 13248048593 and 13248048602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2584950 + ... + 2590069.

It is an arithmetic number, because the mean of its divisors is an integer number (794106819).

Almost surely, 213248048640 is an apocalyptic number.

13248048640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13248048640 is an abundant number, since it is smaller than the sum of its proper divisors (18516224120).

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

13248048640 is an frugal number, since it uses more digits than its factorization.

13248048640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175042 (or 5175026 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 13248048640 in words is "thirteen billion, two hundred forty-eight million, forty-eight thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1280 2560 5175019 10350038 20700076 25875095 41400152 51750190 82800304 103500380 165600608 207000760 331201216 414001520 662402432 828003040 1324804864 1656006080 2649609728 3312012160 6624024320 13248048640