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55808350 = 25213233733
BaseRepresentation
bin1101010011100…
…1000101011110
310220000100122221
43110321011132
5103241331400
65312055554
71245235363
oct324710536
9126010587
1055808350
1129558704
12168345ba
13b7400c0
1475aa46a
154d75c1a
hex353915e

55808350 has 48 divisors (see below), whose sum is σ = 116680032. Its totient is φ = 19704960.

The previous prime is 55808341. The next prime is 55808359. The reversal of 55808350 is 5380855.

It is an interprime number because it is at equal distance from previous prime (55808341) and next prime (55808359).

It is a super-2 number, since 2×558083502 = 6229143859445000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55808359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13084 + ... + 16816.

It is an arithmetic number, because the mean of its divisors is an integer number (2430834).

Almost surely, 255808350 is an apocalyptic number.

55808350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55808350 is an abundant number, since it is smaller than the sum of its proper divisors (60871682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55808350 is a wasteful number, since it uses less digits than its factorization.

55808350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781 (or 3776 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 55808350 is about 7470.4986446689. The cubic root of 55808350 is about 382.1492933629.

The spelling of 55808350 in words is "fifty-five million, eight hundred eight thousand, three hundred fifty".

Divisors: 1 2 5 10 13 23 25 26 46 50 65 115 130 230 299 325 575 598 650 1150 1495 2990 3733 7466 7475 14950 18665 37330 48529 85859 93325 97058 171718 186650 242645 429295 485290 858590 1116167 1213225 2146475 2232334 2426450 4292950 5580835 11161670 27904175 55808350