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55101015 = 3252942223
BaseRepresentation
bin1101001000110…
…0011001010111
310211200102101100
43102030121113
5103101213030
65245001143
71236231234
oct322143127
9124612340
1055101015
1129115232
12165531b3
13b553168
14746478b
154c86360
hex348c657

55101015 has 24 divisors (see below), whose sum is σ = 98804160. Its totient is φ = 28373184.

The previous prime is 55100993. The next prime is 55101023. The reversal of 55101015 is 51010155.

55101015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55101015 - 27 = 55100887 is a prime.

It is a super-2 number, since 2×551010152 = 6072243708060450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19807 + ... + 22416.

It is an arithmetic number, because the mean of its divisors is an integer number (4116840).

Almost surely, 255101015 is an apocalyptic number.

55101015 is a deficient number, since it is larger than the sum of its proper divisors (43703145).

55101015 is a wasteful number, since it uses less digits than its factorization.

55101015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42263 (or 42260 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 55101015 is about 7423.0057928039. The cubic root of 55101015 is about 380.5279250446.

The spelling of 55101015 in words is "fifty-five million, one hundred one thousand, fifteen".

Divisors: 1 3 5 9 15 29 45 87 145 261 435 1305 42223 126669 211115 380007 633345 1224467 1900035 3673401 6122335 11020203 18367005 55101015