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215072693216 = 2561110180683
BaseRepresentation
bin1100100001001101010…
…1001101101111100000
3202120010210012211112022
43020103111031233200
512010432102140331
6242445242121012
721352462505003
oct3102325155740
9676123184468
10215072693216
1183236a23757
12358234b0168
1317386c3a864
14a5a3c2953a
1558db84767b
hex321354dbe0

215072693216 has 24 divisors (see below), whose sum is σ = 430365751704. Its totient is φ = 105773454720.

The previous prime is 215072693191. The next prime is 215072693219. The reversal of 215072693216 is 612396270512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215072693219) 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, 55088390 + ... + 55092293.

It is an arithmetic number, because the mean of its divisors is an integer number (17931906321).

Almost surely, 2215072693216 is an apocalyptic number.

It is an amenable number.

215072693216 is an abundant number, since it is smaller than the sum of its proper divisors (215293058488).

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

215072693216 is a wasteful number, since it uses less digits than its factorization.

215072693216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110180754 (or 110180746 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 215072693216 in words is "two hundred fifteen billion, seventy-two million, six hundred ninety-three thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 32 61 122 244 488 976 1952 110180683 220361366 440722732 881445464 1762890928 3525781856 6721021663 13442043326 26884086652 53768173304 107536346608 215072693216