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4577972 = 227223357
BaseRepresentation
bin10001011101101010110100
322121120210112
4101131222310
52132443342
6242042152
753624600
oct21355264
98546715
104577972
112647553
121649358
13c43979
14872500
15606682
hex45dab4

4577972 has 18 divisors (see below), whose sum is σ = 9319842. Its totient is φ = 1961904.

The previous prime is 4577959. The next prime is 4577977. The reversal of 4577972 is 2797754.

It can be written as a sum of positive squares in only one way, i.e., 4351396 + 226576 = 2086^2 + 476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4577977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11483 + ... + 11874.

It is an arithmetic number, because the mean of its divisors is an integer number (517769).

Almost surely, 24577972 is an apocalyptic number.

It is an amenable number.

4577972 is an abundant number, since it is smaller than the sum of its proper divisors (4741870).

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

4577972 is a wasteful number, since it uses less digits than its factorization.

4577972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23375 (or 23366 counting only the distinct ones).

The product of its digits is 123480, while the sum is 41.

The square root of 4577972 is about 2139.6195923575. The cubic root of 4577972 is about 166.0444551185.

The spelling of 4577972 in words is "four million, five hundred seventy-seven thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 49 98 196 23357 46714 93428 163499 326998 653996 1144493 2288986 4577972