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69690348349 = 1953101719953
BaseRepresentation
bin100000011100111011…
…1100101001100111101
320122212211200111122221
41000321313211030331
52120211212121344
652003150005341
75014664121106
oct1007167451475
9218784614587
1069690348349
1127612426216
121160b1a6851
13675824a71b
14353184d3ad
151c2d347184
hex1039de533d

69690348349 has 32 divisors (see below), whose sum is σ = 75666700800. Its totient is φ = 63978969600.

The previous prime is 69690348341. The next prime is 69690348353. The reversal of 69690348349 is 94384309696.

It is a cyclic number.

It is not a de Polignac number, because 69690348349 - 23 = 69690348341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69690348341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73126857 + ... + 73127809.

It is an arithmetic number, because the mean of its divisors is an integer number (2364584400).

Almost surely, 269690348349 is an apocalyptic number.

It is an amenable number.

69690348349 is a deficient number, since it is larger than the sum of its proper divisors (5976352451).

69690348349 is a wasteful number, since it uses less digits than its factorization.

69690348349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845.

The product of its (nonzero) digits is 30233088, while the sum is 61.

The spelling of 69690348349 in words is "sixty-nine billion, six hundred ninety million, three hundred forty-eight thousand, three hundred forty-nine".

Divisors: 1 19 53 101 719 953 1007 1919 5353 13661 18107 38107 50509 72619 96253 101707 685207 724033 959671 1379761 1828807 3848807 5101409 13018933 36315971 69205907 73127333 96926771 690003449 1314912233 3667913071 69690348349