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213088612789 = 133137731631201
BaseRepresentation
bin1100011001110100010…
…0100011000110110101
3202101000111211002212001
43012131010203012311
511442401141102124
6241520324255301
721252351215653
oct3063504430665
9671014732761
10213088612789
1182408a6a768
123536ab41531
131712bb78580
14a456515dd3
15582257bb44
hex319d1231b5

213088612789 has 64 divisors (see below), whose sum is σ = 248337123328. Its totient is φ = 181398528000.

The previous prime is 213088612699. The next prime is 213088612801. The reversal of 213088612789 is 987216880312.

It is a cyclic number.

It is not a de Polignac number, because 213088612789 - 217 = 213088481717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213088612589) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 177425389 + ... + 177426589.

It is an arithmetic number, because the mean of its divisors is an integer number (3880267552).

Almost surely, 2213088612789 is an apocalyptic number.

It is an amenable number.

213088612789 is a deficient number, since it is larger than the sum of its proper divisors (35248510539).

213088612789 is a wasteful number, since it uses less digits than its factorization.

213088612789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 213088612789 in words is "two hundred thirteen billion, eighty-eight million, six hundred twelve thousand, seven hundred eighty-nine".

Divisors: 1 13 31 37 73 163 403 481 949 1147 1201 2119 2263 2701 5053 6031 11899 14911 15613 29419 35113 37231 44437 65689 78403 83731 87673 154687 186961 195763 368869 440263 484003 577681 1088503 1139749 1377547 2430493 2544919 2717863 3243901 4795297 5723419 6068653 7243231 13648153 14290699 17908111 35332219 42170713 78892489 94162003 100560931 177425989 185779087 224540161 443011669 528755863 1307292103 2919022093 5759151697 6873826219 16391431753 213088612789