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28694341695 = 3525728126489
BaseRepresentation
bin11010101110010100…
…001110100000111111
32202001202110120220010
4122232110032200333
5432231222413240
621103151154303
72034033610605
oct325624164077
982052416803
1028694341695
1111195231688
125689815993
132923a28816
141562c93875
15b2e1bc280
hex6ae50e83f

28694341695 has 32 divisors (see below), whose sum is σ = 46255354560. Its totient is φ = 15189278720.

The previous prime is 28694341681. The next prime is 28694341699. The reversal of 28694341695 is 59614349682.

It is not a de Polignac number, because 28694341695 - 212 = 28694337599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28694341699) 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, 1070011 + ... + 1096499.

It is an arithmetic number, because the mean of its divisors is an integer number (1445479830).

Almost surely, 228694341695 is an apocalyptic number.

28694341695 is a deficient number, since it is larger than the sum of its proper divisors (17561012865).

28694341695 is a wasteful number, since it uses less digits than its factorization.

28694341695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27035.

The product of its digits is 11197440, while the sum is 57.

The spelling of 28694341695 in words is "twenty-eight billion, six hundred ninety-four million, three hundred forty-one thousand, six hundred ninety-five".

Divisors: 1 3 5 15 257 281 771 843 1285 1405 3855 4215 26489 72217 79467 132445 216651 361085 397335 1083255 6807673 7443409 20423019 22330227 34038365 37217045 102115095 111651135 1912956113 5738868339 9564780565 28694341695