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25233030 = 23252511117
BaseRepresentation
bin110000001000…
…0011010000110
31202110222012200
41200100122012
522424424110
62300455330
7424322454
oct140203206
952428180
1025233030
1113274a49
12854a546
1352c62b4
1434cb9d4
1523366c0
hex1810686

25233030 has 48 divisors (see below), whose sum is σ = 65926224. Its totient is φ = 6696000.

The previous prime is 25233017. The next prime is 25233041. The reversal of 25233030 is 3033252.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 25232994 and 25233012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22032 + ... + 23148.

It is an arithmetic number, because the mean of its divisors is an integer number (1373463).

Almost surely, 225233030 is an apocalyptic number.

25233030 is an abundant number, since it is smaller than the sum of its proper divisors (40693194).

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

25233030 is a wasteful number, since it uses less digits than its factorization.

25233030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 25233030 is about 5023.2489486387. The cubic root of 25233030 is about 293.3074773468.

Adding to 25233030 its reverse (3033252), we get a palindrome (28266282).

The spelling of 25233030 in words is "twenty-five million, two hundred thirty-three thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 251 502 753 1117 1255 1506 2234 2259 2510 3351 3765 4518 5585 6702 7530 10053 11170 11295 16755 20106 22590 33510 50265 100530 280367 560734 841101 1401835 1682202 2523303 2803670 4205505 5046606 8411010 12616515 25233030