Search a number
-
+
22877980 = 22553113191
BaseRepresentation
bin101011101000…
…1011100011100
31121001022200121
41113101130130
521324043410
62134204324
7365313436
oct127213434
947038617
1022877980
1111a06624
1277b36a4
134980388
143077656
15201d9da
hex15d171c

22877980 has 48 divisors (see below), whose sum is σ = 49641984. Its totient is φ = 8852480.

The previous prime is 22877977. The next prime is 22877983. The reversal of 22877980 is 8977822.

It is an interprime number because it is at equal distance from previous prime (22877977) and next prime (22877983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22877983) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 119685 + ... + 119875.

It is an arithmetic number, because the mean of its divisors is an integer number (1034208).

Almost surely, 222877980 is an apocalyptic number.

22877980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22877980 is an abundant number, since it is smaller than the sum of its proper divisors (26764004).

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

22877980 is a wasteful number, since it uses less digits than its factorization.

22877980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 22877980 is about 4783.0931414724. The cubic root of 22877980 is about 283.8828949184.

The spelling of 22877980 in words is "twenty-two million, eight hundred seventy-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 53 106 113 191 212 226 265 382 452 530 565 764 955 1060 1130 1910 2260 3820 5989 10123 11978 20246 21583 23956 29945 40492 43166 50615 59890 86332 101230 107915 119780 202460 215830 431660 1143899 2287798 4575596 5719495 11438990 22877980