Search a number
-
+
231054528 = 26310972
BaseRepresentation
bin11011100010110…
…01110011000000
3121002202210020010
431301121303000
5433122221103
634532144520
75503634235
oct1561316300
9532683203
10231054528
11109473761
1265468140
1338b3b273
142298778c
1515440903
hexdc59cc0

231054528 has 42 divisors (see below), whose sum is σ = 611889556. Its totient is φ = 76947968.

The previous prime is 231054517. The next prime is 231054541. The reversal of 231054528 is 825450132.

It is a junction number, because it is equal to n+sod(n) for n = 231054495 and 231054504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210076 + ... + 211172.

Almost surely, 2231054528 is an apocalyptic number.

It is an amenable number.

231054528 is an abundant number, since it is smaller than the sum of its proper divisors (380835028).

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

231054528 is an frugal number, since it uses more digits than its factorization.

231054528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 231054528 is about 15200.4778872245. The cubic root of 231054528 is about 613.6275190265.

The spelling of 231054528 in words is "two hundred thirty-one million, fifty-four thousand, five hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 1097 2194 3291 4388 6582 8776 13164 17552 26328 35104 52656 70208 105312 210624 1203409 2406818 3610227 4813636 7220454 9627272 14440908 19254544 28881816 38509088 57763632 77018176 115527264 231054528