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55202315 = 5717192257
BaseRepresentation
bin1101001010010…
…1001000001011
310211212120100012
43102211020023
5103112433230
65251102135
71240132460
oct322451013
9124776305
1055202315
1129184353
12165a194b
13b58a2bc
14748d667
154ca6395
hex34a520b

55202315 has 48 divisors (see below), whose sum is σ = 84929472. Its totient is φ = 33619968.

The previous prime is 55202311. The next prime is 55202333. The reversal of 55202315 is 51320255.

It is not a de Polignac number, because 55202315 - 22 = 55202311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55202311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 214667 + ... + 214923.

It is an arithmetic number, because the mean of its divisors is an integer number (1769364).

Almost surely, 255202315 is an apocalyptic number.

55202315 is a deficient number, since it is larger than the sum of its proper divisors (29727157).

55202315 is a wasteful number, since it uses less digits than its factorization.

55202315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55202315 is about 7429.8260410322. The cubic root of 55202315 is about 380.7609750799.

The spelling of 55202315 in words is "fifty-five million, two hundred two thousand, three hundred fifteen".

Divisors: 1 5 7 17 19 35 85 95 119 133 257 323 361 595 665 1285 1615 1799 1805 2261 2527 4369 4883 6137 8995 11305 12635 21845 24415 30583 30685 34181 42959 83011 92777 152915 170905 214795 415055 463885 581077 649439 1577209 2905385 3247195 7886045 11040463 55202315