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13130321202 = 2323719715197
BaseRepresentation
bin11000011101010000…
…01100110100110010
31020220002000102112200
430032220030310302
5203342330234302
610010524204030
7643244613555
oct141650146462
936802012480
1013130321202
1156287a6729
122665399616
1313133a073b
148c7bb069c
1551cae581c
hex30ea0cd32

13130321202 has 24 divisors (see below), whose sum is σ = 29217923436. Its totient is φ = 4258482336.

The previous prime is 13130321159. The next prime is 13130321221. The reversal of 13130321202 is 20212303131.

13130321202 is a `hidden beast` number, since 13 + 130 + 321 + 202 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11312236881 + 1818084321 = 106359^2 + 42639^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9856933 + ... + 9858264.

Almost surely, 213130321202 is an apocalyptic number.

13130321202 is an abundant number, since it is smaller than the sum of its proper divisors (16087602234).

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

13130321202 is a wasteful number, since it uses less digits than its factorization.

13130321202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19715242 (or 19715239 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13130321202 its reverse (20212303131), we get a palindrome (33342624333).

The spelling of 13130321202 in words is "thirteen billion, one hundred thirty million, three hundred twenty-one thousand, two hundred two".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 19715197 39430394 59145591 118291182 177436773 354873546 729462289 1458924578 2188386867 4376773734 6565160601 13130321202