Search a number
-
+
2238012972 = 22321314933203
BaseRepresentation
bin1000010101100101…
…0101111000101100
312202222012211122100
42011121111320230
514040412403342
61010024215100
7106313540106
oct20531257054
95688184570
102238012972
11a493332a8
1252560a490
13298880940
14173334576
15d1729e4c
hex85655e2c

2238012972 has 72 divisors (see below), whose sum is σ = 6098352624. Its totient is φ = 687943296.

The previous prime is 2238012971. The next prime is 2238013009. The reversal of 2238012972 is 2792108322.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2238012971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 697123 + ... + 700325.

It is an arithmetic number, because the mean of its divisors is an integer number (84699342).

Almost surely, 22238012972 is an apocalyptic number.

It is an amenable number.

2238012972 is an abundant number, since it is smaller than the sum of its proper divisors (3860339652).

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

2238012972 is a wasteful number, since it uses less digits than its factorization.

2238012972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719 (or 4714 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2238012972 is about 47307.6417928436. The cubic root of 2238012972 is about 1308.0395226954.

The spelling of 2238012972 in words is "two billion, two hundred thirty-eight million, twelve thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 1493 2986 3203 4479 5972 6406 8958 9609 12812 13437 17916 19218 19409 26874 28827 38436 38818 41639 53748 57654 58227 77636 83278 115308 116454 124917 166556 174681 232908 249834 349362 374751 499668 698724 749502 1499004 4782079 9564158 14346237 19128316 28692474 43038711 57384948 62167027 86077422 124334054 172154844 186501081 248668108 373002162 559503243 746004324 1119006486 2238012972