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36215140 = 22513197331
BaseRepresentation
bin1000101000100…
…1100101100100
32112010220211111
42022021211210
533232341030
63332114404
7616552333
oct212114544
975126744
1036215140
1119495a75
1210165a04
13766cba0
144b49d1a
1532a562a
hex2289964

36215140 has 48 divisors (see below), whose sum is σ = 86224320. Its totient is φ = 12666240.

The previous prime is 36215129. The next prime is 36215149. The reversal of 36215140 is 4151263.

It is not an unprimeable number, because it can be changed into a prime (36215149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1275 + ... + 8605.

It is an arithmetic number, because the mean of its divisors is an integer number (1796340).

Almost surely, 236215140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36215140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43112160).

36215140 is an abundant number, since it is smaller than the sum of its proper divisors (50009180).

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

36215140 is a wasteful number, since it uses less digits than its factorization.

36215140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7372 (or 7370 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 36215140 is about 6017.9016276440. The cubic root of 36215140 is about 330.8491750852.

The spelling of 36215140 in words is "thirty-six million, two hundred fifteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 19 20 26 38 52 65 76 95 130 190 247 260 380 494 988 1235 2470 4940 7331 14662 29324 36655 73310 95303 139289 146620 190606 278578 381212 476515 557156 696445 953030 1392890 1810757 1906060 2785780 3621514 7243028 9053785 18107570 36215140