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2215152133412 = 221613343327981
BaseRepresentation
bin100000001111000001010…
…110110010010100100100
321211202200202112122221212
4200033001112302110210
5242243112421232122
64413343221530552
7316016351315111
oct40170126622444
97752622478855
102215152133412
117844936a3099
122b9389b73a58
13130b70a9755a
14792dd077908
153c94b7b7ce2
hex203c15b2524

2215152133412 has 12 divisors (see below), whose sum is σ = 3878919540636. Its totient is φ = 1106889407520.

The previous prime is 2215152133387. The next prime is 2215152133421. The reversal of 2215152133412 is 2143312515122.

It can be written as a sum of positive squares in 2 ways, for example, as 1828536790756 + 386615342656 = 1352234^2 + 621784^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171657539 + ... + 171670442.

It is an arithmetic number, because the mean of its divisors is an integer number (323243295053).

Almost surely, 22215152133412 is an apocalyptic number.

It is an amenable number.

2215152133412 is a deficient number, since it is larger than the sum of its proper divisors (1663767407224).

2215152133412 is a wasteful number, since it uses less digits than its factorization.

2215152133412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343329598 (or 343329596 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

Adding to 2215152133412 its reverse (2143312515122), we get a palindrome (4358464648534).

The spelling of 2215152133412 in words is "two trillion, two hundred fifteen billion, one hundred fifty-two million, one hundred thirty-three thousand, four hundred twelve".

Divisors: 1 2 4 1613 3226 6452 343327981 686655962 1373311924 553788033353 1107576066706 2215152133412