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4992972 = 2231961359
BaseRepresentation
bin10011000010111111001100
3100101200001220
4103002333030
52234233342
6255003340
760303525
oct23027714
910350056
104992972
112900326
121809550
13105a82a
1493d84c
156895ec
hex4c2fcc

4992972 has 48 divisors (see below), whose sum is σ = 12499200. Its totient is φ = 1546560.

The previous prime is 4992961. The next prime is 4992973. The reversal of 4992972 is 2792994.

It is a d-powerful number, because it can be written as 42 + 9 + 95 + 29 + 97 + 76 + 215 .

It is not an unprimeable number, because it can be changed into a prime (4992973) 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, 13729 + ... + 14087.

It is an arithmetic number, because the mean of its divisors is an integer number (260400).

Almost surely, 24992972 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 4992972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6249600).

4992972 is an abundant number, since it is smaller than the sum of its proper divisors (7506228).

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

4992972 is a wasteful number, since it uses less digits than its factorization.

4992972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 444 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 4992972 is about 2234.4959163086. The cubic root of 4992972 is about 170.9174390273.

The spelling of 4992972 in words is "four million, nine hundred ninety-two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 19 38 57 61 76 114 122 183 228 244 359 366 718 732 1077 1159 1436 2154 2318 3477 4308 4636 6821 6954 13642 13908 20463 21899 27284 40926 43798 65697 81852 87596 131394 262788 416081 832162 1248243 1664324 2496486 4992972