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156712642216 = 23131506852329
BaseRepresentation
bin1001000111110011001…
…1010010011010101000
3112222111120111001212221
42101330303102122220
510031421414022331
6155554235443424
714215325323504
oct2217463223250
9488446431787
10156712642216
1160509223649
12264568b6574
1311a161929c0
1478290a9304
154123085711
hex247ccd26a8

156712642216 has 16 divisors (see below), whose sum is σ = 316438989300. Its totient is φ = 72328911744.

The previous prime is 156712642201. The next prime is 156712642217. The reversal of 156712642216 is 612246217651.

It can be written as a sum of positive squares in 2 ways, for example, as 144134122500 + 12578519716 = 379650^2 + 112154^2 .

It is not an unprimeable number, because it can be changed into a prime (156712642217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753426061 + ... + 753426268.

Almost surely, 2156712642216 is an apocalyptic number.

It is an amenable number.

156712642216 is an abundant number, since it is smaller than the sum of its proper divisors (159726347084).

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

156712642216 is a wasteful number, since it uses less digits than its factorization.

156712642216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506852348 (or 1506852344 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

Adding to 156712642216 its reverse (612246217651), we get a palindrome (768958859867).

The spelling of 156712642216 in words is "one hundred fifty-six billion, seven hundred twelve million, six hundred forty-two thousand, two hundred sixteen".

Divisors: 1 2 4 8 13 26 52 104 1506852329 3013704658 6027409316 12054818632 19589080277 39178160554 78356321108 156712642216