Search a number
-
+
232147806 = 23114318161
BaseRepresentation
bin11011101011001…
…00101101011110
3121011211022220220
431311210231132
5433412212211
635011422210
75516136522
oct1565445536
9534738826
10232147806
1110a0500a0
12658b4966
1339131a87
1422b8dd82
15155a9806
hexdd64b5e

232147806 has 32 divisors (see below), whose sum is σ = 507741696. Its totient is φ = 70176000.

The previous prime is 232147789. The next prime is 232147819. The reversal of 232147806 is 608741232.

It is a super-2 number, since 2×2321478062 = 107785207661227272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24366 + ... + 32526.

It is an arithmetic number, because the mean of its divisors is an integer number (15866928).

Almost surely, 2232147806 is an apocalyptic number.

232147806 is an abundant number, since it is smaller than the sum of its proper divisors (275593890).

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

232147806 is a wasteful number, since it uses less digits than its factorization.

232147806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8608.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 232147806 is about 15236.3974088365. The cubic root of 232147806 is about 614.5938279126.

The spelling of 232147806 in words is "two hundred thirty-two million, one hundred forty-seven thousand, eight hundred six".

Divisors: 1 2 3 6 11 22 33 66 431 862 1293 2586 4741 8161 9482 14223 16322 24483 28446 48966 89771 179542 269313 538626 3517391 7034782 10552173 21104346 38691301 77382602 116073903 232147806