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16212707808 = 2531115352943
BaseRepresentation
bin11110001100101101…
…00100100111100000
31112211220001220001120
433012112210213200
5231200423122213
611240434332240
71112523512463
oct170626444740
945756056046
1016212707808
11696a718380
12318572a080
1316b4b6c73b
14adb3012da
1564d510423
hex3c65a49e0

16212707808 has 48 divisors (see below), whose sum is σ = 46427302656. Its totient is φ = 4912941440.

The previous prime is 16212707803. The next prime is 16212707837. The reversal of 16212707808 is 80870721261.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 16212707808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16212707801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7675416 + ... + 7677527.

It is an arithmetic number, because the mean of its divisors is an integer number (967235472).

Almost surely, 216212707808 is an apocalyptic number.

It is an amenable number.

16212707808 is an abundant number, since it is smaller than the sum of its proper divisors (30214594848).

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

16212707808 is a wasteful number, since it uses less digits than its factorization.

16212707808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15352967 (or 15352959 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 16212707808 in words is "sixteen billion, two hundred twelve million, seven hundred seven thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 528 1056 15352943 30705886 46058829 61411772 92117658 122823544 168882373 184235316 245647088 337764746 368470632 491294176 506647119 675529492 736941264 1013294238 1351058984 1473882528 2026588476 2702117968 4053176952 5404235936 8106353904 16212707808