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36145161 = 3213308933
BaseRepresentation
bin1000100111100…
…0100000001001
32112000100211200
42021320200021
533223121121
63330414413
7616141323
oct211704011
975010750
1036145161
1119448438
1210131409
137647090
144b2c613
15328ea26
hex2278809

36145161 has 12 divisors (see below), whose sum is σ = 56225988. Its totient is φ = 22243104.

The previous prime is 36145141. The next prime is 36145171. The reversal of 36145161 is 16154163.

36145161 = 11442 + 11452 + ... + 11702.

It can be written as a sum of positive squares in 2 ways, for example, as 3825936 + 32319225 = 1956^2 + 5685^2 .

It is not a de Polignac number, because 36145161 - 26 = 36145097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36145141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154350 + ... + 154583.

It is an arithmetic number, because the mean of its divisors is an integer number (4685499).

Almost surely, 236145161 is an apocalyptic number.

It is an amenable number.

36145161 is a deficient number, since it is larger than the sum of its proper divisors (20080827).

36145161 is a wasteful number, since it uses less digits than its factorization.

36145161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308952 (or 308949 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 36145161 is about 6012.0845802434. The cubic root of 36145161 is about 330.6359362475.

It can be divided in two parts, 36 and 145161, that multiplied together give a square (5225796 = 22862).

The spelling of 36145161 in words is "thirty-six million, one hundred forty-five thousand, one hundred sixty-one".

Divisors: 1 3 9 13 39 117 308933 926799 2780397 4016129 12048387 36145161