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69889453075 = 521318110871093
BaseRepresentation
bin100000100010110111…
…1000110110000010011
320200101201100002000001
41001011233012300103
52121113144444300
652035021310431
75022632356261
oct1010557066023
9220351302001
1069889453075
1127704857582
1211665a05417
13678a580380
14355007b431
151c40a7616a
hex1045bc6c13

69889453075 has 48 divisors (see below), whose sum is σ = 94017204736. Its totient is φ = 51231398400.

The previous prime is 69889453061. The next prime is 69889453091. The reversal of 69889453075 is 57035498896.

It is not a de Polignac number, because 69889453075 - 213 = 69889444883 is a prime.

It is a super-2 number, since 2×698894530752 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 69889452998 and 69889453016.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63942229 + ... + 63943321.

Almost surely, 269889453075 is an apocalyptic number.

69889453075 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

69889453075 is the 141310-th nonagonal number.

69889453075 is a deficient number, since it is larger than the sum of its proper divisors (24127751661).

69889453075 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (69889453074) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (2384).

69889453075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 64.

The spelling of 69889453075 in words is "sixty-nine billion, eight hundred eighty-nine million, four hundred fifty-three thousand, seventy-five".

Divisors: 1 5 13 25 65 181 325 905 1087 1093 2353 4525 5435 5465 11765 14131 14209 27175 27325 58825 70655 71045 196747 197833 353275 355225 983735 989165 1188091 2557711 2571829 4918675 4945825 5940455 12788555 12859145 15445183 29702275 63942775 64295725 77225915 215044471 386129575 1075222355 2795578123 5376111775 13977890615 69889453075