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55106469 = 321117137239
BaseRepresentation
bin1101001000110…
…1101110100101
310211200200212100
43102031232211
5103101401334
65245042313
71236253155
oct322155645
9124620770
1055106469
1129119340
1216556399
13b5557a2
147466765
154c87c99
hex348dba5

55106469 has 48 divisors (see below), whose sum is σ = 93000960. Its totient is φ = 31073280.

The previous prime is 55106449. The next prime is 55106473. The reversal of 55106469 is 96460155.

55106469 is a `hidden beast` number, since 5 + 5 + 1 + 0 + 646 + 9 = 666.

It is not a de Polignac number, because 55106469 - 211 = 55104421 is a prime.

It is a super-2 number, since 2×551064692 = 6073445851295922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55106449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 230452 + ... + 230690.

It is an arithmetic number, because the mean of its divisors is an integer number (1937520).

Almost surely, 255106469 is an apocalyptic number.

It is an amenable number.

55106469 is a deficient number, since it is larger than the sum of its proper divisors (37894491).

55106469 is a wasteful number, since it uses less digits than its factorization.

55106469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 55106469 is about 7423.3731551095. The cubic root of 55106469 is about 380.5404797488.

The spelling of 55106469 in words is "fifty-five million, one hundred six thousand, four hundred sixty-nine".

Divisors: 1 3 9 11 17 33 51 99 137 153 187 239 411 561 717 1233 1507 1683 2151 2329 2629 4063 4521 6987 7887 12189 13563 20961 23661 25619 32743 36567 44693 76857 98229 134079 230571 294687 360173 402237 556631 1080519 1669893 3241557 5009679 6122941 18368823 55106469