Search a number
-
+
338301972 = 2232175211061
BaseRepresentation
bin10100001010100…
…001010000010100
3212120120112001200
4110022201100110
51143101130342
653322552500
711245343061
oct2412412024
9776515050
10338301972
11163a65308
1295368730
135511b7a8
1432d03c68
151ea7794c
hex142a1414

338301972 has 72 divisors (see below), whose sum is σ = 908048232. Its totient is φ = 105830400.

The previous prime is 338301949. The next prime is 338301991. The reversal of 338301972 is 279103833.

It is a happy number.

338301972 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 80892036 + 257409936 = 8994^2 + 16044^2 .

It is a super-2 number, since 2×3383019722 = 228896448518177568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318322 + ... + 319382.

It is an arithmetic number, because the mean of its divisors is an integer number (12611781).

Almost surely, 2338301972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 338301972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454024116).

338301972 is an abundant number, since it is smaller than the sum of its proper divisors (569746260).

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

338301972 is a wasteful number, since it uses less digits than its factorization.

338301972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609 (or 1604 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 338301972 is about 18392.9870331059. The cubic root of 338301972 is about 696.7893590777.

The spelling of 338301972 in words is "three hundred thirty-eight million, three hundred one thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 521 612 1042 1061 1563 2084 2122 3126 3183 4244 4689 6252 6366 8857 9378 9549 12732 17714 18037 18756 19098 26571 35428 36074 38196 53142 54111 72148 79713 106284 108222 159426 162333 216444 318852 324666 552781 649332 1105562 1658343 2211124 3316686 4975029 6633372 9397277 9950058 18794554 19900116 28191831 37589108 56383662 84575493 112767324 169150986 338301972