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25130196 = 22337132557
BaseRepresentation
bin101111111011…
…1010011010100
31202021202011000
41133313103110
522413131241
62254343300
7423413610
oct137672324
952252130
1025130196
1113204763
1284bab30
13528b550
1434a2340
152315eb6
hex17f74d4

25130196 has 96 divisors (see below), whose sum is σ = 80218880. Its totient is φ = 6625152.

The previous prime is 25130173. The next prime is 25130201. The reversal of 25130196 is 69103152.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8550 + ... + 11106.

Almost surely, 225130196 is an apocalyptic number.

25130196 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25130196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40109440).

25130196 is an abundant number, since it is smaller than the sum of its proper divisors (55088684).

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

25130196 is a wasteful number, since it uses less digits than its factorization.

25130196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590 (or 2582 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 25130196 is about 5013.0026929975. The cubic root of 25130196 is about 292.9084890905.

Subtracting from 25130196 its sum of digits (27), we obtain a square (25130169 = 50132).

The spelling of 25130196 in words is "twenty-five million, one hundred thirty thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 7 9 12 13 14 18 21 26 27 28 36 39 42 52 54 63 78 84 91 108 117 126 156 182 189 234 252 273 351 364 378 468 546 702 756 819 1092 1404 1638 2457 2557 3276 4914 5114 7671 9828 10228 15342 17899 23013 30684 33241 35798 46026 53697 66482 69039 71596 92052 99723 107394 132964 138078 161091 199446 214788 232687 276156 299169 322182 398892 465374 483273 598338 644364 698061 897507 930748 966546 1196676 1396122 1795014 1933092 2094183 2792244 3590028 4188366 6282549 8376732 12565098 25130196