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13212104576 = 271147533767
BaseRepresentation
bin11000100111000000…
…01011011110000000
31021002202220110020112
430103200023132000
5204024244321301
610023005130452
7645260015216
oct142340133600
937082813215
1013212104576
11566a9857a0
122688859a28
131327306778
148d49bccb6
15524d9c9bb
hex31380b780

13212104576 has 128 divisors (see below), whose sum is σ = 29885967360. Its totient is φ = 5765294080.

The previous prime is 13212104483. The next prime is 13212104639. The reversal of 13212104576 is 67540121231.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (32).

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 15 ways as a sum of consecutive naturals, for example, 3505445 + ... + 3509211.

It is an arithmetic number, because the mean of its divisors is an integer number (233484120).

Almost surely, 213212104576 is an apocalyptic number.

13212104576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13212104576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14942983680).

13212104576 is an abundant number, since it is smaller than the sum of its proper divisors (16673862784).

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

13212104576 is a wasteful number, since it uses less digits than its factorization.

13212104576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892 (or 3880 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 13212104576 in words is "thirteen billion, two hundred twelve million, one hundred four thousand, five hundred seventy-six".

Divisors: 1 2 4 8 11 16 22 32 44 47 53 64 88 94 106 128 176 188 212 352 376 424 517 583 704 752 848 1034 1166 1408 1504 1696 2068 2332 2491 3008 3392 3767 4136 4664 4982 6016 6784 7534 8272 9328 9964 15068 16544 18656 19928 27401 30136 33088 37312 39856 41437 54802 60272 66176 74624 79712 82874 109604 120544 159424 165748 177049 199651 219208 241088 318848 331496 354098 399302 438416 482176 662992 708196 798604 876832 1325984 1416392 1597208 1753664 1947539 2196161 2651968 2832784 3194416 3507328 3895078 4392322 5303936 5665568 6388832 7790156 8784644 9383597 11331136 12777664 15580312 17569288 18767194 22662272 25555328 31160624 35138576 37534388 62321248 70277152 75068776 103219567 124642496 140554304 150137552 206439134 249284992 281108608 300275104 412878268 600550208 825756536 1201100416 1651513072 3303026144 6606052288 13212104576