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23025444 = 223131031433
BaseRepresentation
bin101011111010…
…1011100100100
31121022210222020
41113311130210
521343303234
62141303140
7366466401
oct127653444
947283866
1023025444
1111aa73a2
127864ab0
134a02530
1430b52a8
15204c549
hex15f5724

23025444 has 48 divisors (see below), whose sum is σ = 58461312. Its totient is φ = 7011072.

The previous prime is 23025427. The next prime is 23025451. The reversal of 23025444 is 44452032.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15352 + ... + 16784.

It is an arithmetic number, because the mean of its divisors is an integer number (1217944).

Almost surely, 223025444 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 23025444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29230656).

23025444 is an abundant number, since it is smaller than the sum of its proper divisors (35435868).

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

23025444 is a wasteful number, since it uses less digits than its factorization.

23025444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556 (or 1554 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 23025444 is about 4798.4835104437. The cubic root of 23025444 is about 284.4915279635.

Adding to 23025444 its reverse (44452032), we get a palindrome (67477476).

The spelling of 23025444 in words is "twenty-three million, twenty-five thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 103 156 206 309 412 618 1236 1339 1433 2678 2866 4017 4299 5356 5732 8034 8598 16068 17196 18629 37258 55887 74516 111774 147599 223548 295198 442797 590396 885594 1771188 1918787 3837574 5756361 7675148 11512722 23025444