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2236972220 = 225719840967
BaseRepresentation
bin1000010101010101…
…0111110010111100
312202220020221222222
42011111113302330
514040131102340
61005550024512
7106301643620
oct20525276274
95686227888
102236972220
11a4879237a
125251a8138
132985a8002
14173143180
15d15c18b5
hex85557cbc

2236972220 has 48 divisors (see below), whose sum is σ = 5651304960. Its totient is φ = 726594624.

The previous prime is 2236972207. The next prime is 2236972223. The reversal of 2236972220 is 222796322.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2236972223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417824 + ... + 423143.

It is an arithmetic number, because the mean of its divisors is an integer number (117735520).

Almost surely, 22236972220 is an apocalyptic number.

2236972220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2236972220 is an abundant number, since it is smaller than the sum of its proper divisors (3414332740).

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

2236972220 is a wasteful number, since it uses less digits than its factorization.

2236972220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841002 (or 841000 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 2236972220 is about 47296.6406840909. The cubic root of 2236972220 is about 1307.8367303309.

The spelling of 2236972220 in words is "two billion, two hundred thirty-six million, nine hundred seventy-two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 133 140 190 266 380 532 665 1330 2660 840967 1681934 3363868 4204835 5886769 8409670 11773538 15978373 16819340 23547076 29433845 31956746 58867690 63913492 79891865 111848611 117735380 159783730 223697222 319567460 447394444 559243055 1118486110 2236972220