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189796460 = 22572358943
BaseRepresentation
bin10110101000000…
…01000001101100
3111020010122210112
423110001001230
5342041441320
630455555152
74463146310
oct1324010154
9436118715
10189796460
1198153987
125368bab8
1330423bc9
141b2c7b40
15119e0ec5
hexb50106c

189796460 has 48 divisors (see below), whose sum is σ = 475324416. Its totient is φ = 62242752.

The previous prime is 189796433. The next prime is 189796469. The reversal of 189796460 is 64697981.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 189796399 and 189796408.

It is not an unprimeable number, because it can be changed into a prime (189796469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26252 + ... + 32691.

It is an arithmetic number, because the mean of its divisors is an integer number (9902592).

Almost surely, 2189796460 is an apocalyptic number.

189796460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189796460 is an abundant number, since it is smaller than the sum of its proper divisors (285527956).

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

189796460 is a wasteful number, since it uses less digits than its factorization.

189796460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58982 (or 58980 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 189796460 is about 13776.6636019030. The cubic root of 189796460 is about 574.6843484911.

The spelling of 189796460 in words is "one hundred eighty-nine million, seven hundred ninety-six thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 58943 117886 235772 294715 412601 589430 825202 1178860 1355689 1650404 2063005 2711378 4126010 5422756 6778445 8252020 9489823 13556890 18979646 27113780 37959292 47449115 94898230 189796460