Base | Representation |
---|---|
bin | 11100001011100… |
… | …001000111000010 |
3 | 1012221121202221200 |
4 | 130023201013002 |
5 | 1432013000000 |
6 | 114525202030 |
7 | 14500400664 |
oct | 3413410702 |
9 | 1187552850 |
10 | 472781250 |
11 | 222966607 |
12 | 112400316 |
13 | 76c45026 |
14 | 46b0c534 |
15 | 2b78d500 |
hex | 1c2e11c2 |
472781250 has 126 divisors (see below), whose sum is σ = 1312424607. Its totient is φ = 123000000.
The previous prime is 472781213. The next prime is 472781273. The reversal of 472781250 is 52187274.
It can be written as a sum of positive squares in 11 ways, for example, as 453306681 + 19474569 = 21291^2 + 4413^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=15375.
It is a super-2 number, since 2×4727812502 = 447044220703125000, which contains 22 as substring.
It is an alternating number because its digits alternate between even and odd.
It is an unprimeable number.
It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 11531230 + ... + 11531270.
Almost surely, 2472781250 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 472781250
472781250 is an abundant number, since it is smaller than the sum of its proper divisors (839643357).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
472781250 is an frugal number, since it uses more digits than its factorization.
472781250 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 120 (or 51 counting only the distinct ones).
The product of its (nonzero) digits is 31360, while the sum is 36.
The square root of 472781250 is about 21743.5335214863. The cubic root of 472781250 is about 779.0286231403.
The spelling of 472781250 in words is "four hundred seventy-two million, seven hundred eighty-one thousand, two hundred fifty".
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