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25430130 = 232511171511
BaseRepresentation
bin110000100000…
…0100001110010
31202211222120200
41201000201302
523002231010
62305020030
7426103215
oct141004162
952758520
1025430130
111339a040
128624616
135364c1b
14353d77c
152374cc0
hex1840872

25430130 has 96 divisors (see below), whose sum is σ = 76422528. Its totient is φ = 5798400.

The previous prime is 25430123. The next prime is 25430131. The reversal of 25430130 is 3103452.

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

It is not an unprimeable number, because it can be changed into a prime (25430131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16075 + ... + 17585.

It is an arithmetic number, because the mean of its divisors is an integer number (796068).

Almost surely, 225430130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25430130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38211264).

25430130 is an abundant number, since it is smaller than the sum of its proper divisors (50992398).

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

25430130 is a wasteful number, since it uses less digits than its factorization.

25430130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 25430130 is about 5042.8295628546. The cubic root of 25430130 is about 294.0691909898.

Adding to 25430130 its reverse (3103452), we get a palindrome (28533582).

The spelling of 25430130 in words is "twenty-five million, four hundred thirty thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 17 18 22 30 33 34 45 51 55 66 85 90 99 102 110 153 165 170 187 198 255 306 330 374 495 510 561 765 935 990 1122 1511 1530 1683 1870 2805 3022 3366 4533 5610 7555 8415 9066 13599 15110 16621 16830 22665 25687 27198 33242 45330 49863 51374 67995 77061 83105 99726 128435 135990 149589 154122 166210 231183 249315 256870 282557 299178 385305 462366 498630 565114 747945 770610 847671 1155915 1412785 1495890 1695342 2311830 2543013 2825570 4238355 5086026 8476710 12715065 25430130