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4572972 = 2232592153
BaseRepresentation
bin10001011100011100101100
322121022221100
4101130130230
52132313342
6242003100
753604165
oct21343454
98538840
104572972
112643818
121646490
13c41601
1487076c
15604e4c
hex45c72c

4572972 has 36 divisors (see below), whose sum is σ = 11760840. Its totient is φ = 1497792.

The previous prime is 4572917. The next prime is 4572979. The reversal of 4572972 is 2792754.

It is a tau number, because it is divible by the number of its divisors (36).

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 (4572979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1048 + ... + 3200.

It is an arithmetic number, because the mean of its divisors is an integer number (326690).

Almost surely, 24572972 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 4572972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5880420).

4572972 is an abundant number, since it is smaller than the sum of its proper divisors (7187868).

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

4572972 is a wasteful number, since it uses less digits than its factorization.

4572972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222 (or 2217 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 4572972 is about 2138.4508411465. The cubic root of 4572972 is about 165.9839825838.

The spelling of 4572972 in words is "four million, five hundred seventy-two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 59 118 177 236 354 531 708 1062 2124 2153 4306 6459 8612 12918 19377 25836 38754 77508 127027 254054 381081 508108 762162 1143243 1524324 2286486 4572972