Search a number
-
+
216007470 = 23257342869
BaseRepresentation
bin11001110000000…
…00001100101110
3120001110022112200
430320000030232
5420244214340
633233442330
75232014250
oct1470001456
9501408480
10216007470
11100a26678
12604103a6
13359a0393
142098bcd0
1513e6c330
hexce0032e

216007470 has 48 divisors (see below), whose sum is σ = 641852640. Its totient is φ = 49372992.

The previous prime is 216007459. The next prime is 216007487. The reversal of 216007470 is 74700612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170805 + ... + 172064.

It is an arithmetic number, because the mean of its divisors is an integer number (13371930).

Almost surely, 2216007470 is an apocalyptic number.

216007470 is an abundant number, since it is smaller than the sum of its proper divisors (425845170).

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

216007470 is a wasteful number, since it uses less digits than its factorization.

216007470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342889 (or 342886 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 216007470 is about 14697.1925890627. The cubic root of 216007470 is about 600.0069165869.

The spelling of 216007470 in words is "two hundred sixteen million, seven thousand, four hundred seventy".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 342869 685738 1028607 1714345 2057214 2400083 3085821 3428690 4800166 5143035 6171642 7200249 10286070 12000415 14400498 15429105 21600747 24000830 30858210 36001245 43201494 72002490 108003735 216007470