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64030000215 = 356797656819
BaseRepresentation
bin111011101000011111…
…000100010001010111
320010021100202000202110
4323220133010101113
52022113140001330
645225345042103
74424503010316
oct735037042127
9203240660673
1064030000215
11251782a1955
12104ab626333
1360656539bc
143155bb627d
1519eb451db0
hexee87c4457

64030000215 has 32 divisors (see below), whose sum is σ = 105049163520. Its totient is φ = 33292790784.

The previous prime is 64030000213. The next prime is 64030000241. The reversal of 64030000215 is 51200003046.

It is a happy number.

It is not a de Polignac number, because 64030000215 - 21 = 64030000213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64030000191 and 64030000200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64030000213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230925 + ... + 425894.

It is an arithmetic number, because the mean of its divisors is an integer number (3282786360).

Almost surely, 264030000215 is an apocalyptic number.

64030000215 is a deficient number, since it is larger than the sum of its proper divisors (41019163305).

64030000215 is a wasteful number, since it uses less digits than its factorization.

64030000215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656991.

The product of its (nonzero) digits is 720, while the sum is 21.

The spelling of 64030000215 in words is "sixty-four billion, thirty million, two hundred fifteen", and thus it is an aban number.

Divisors: 1 3 5 15 67 97 201 291 335 485 1005 1455 6499 19497 32495 97485 656819 1970457 3284095 9852285 44006873 63711443 132020619 191134329 220034365 318557215 660103095 955671645 4268666681 12806000043 21343333405 64030000215