Search a number
-
+
302807264 = 25172137239
BaseRepresentation
bin10010000011000…
…111100011100000
3210002210012110212
4102003013203200
51110004313024
650014113252
710334551004
oct2203074340
9702705425
10302807264
11145a21641
12854ab828
134a9717c6
142c304704
151b8b5a0e
hex120c78e0

302807264 has 72 divisors (see below), whose sum is σ = 640573920. Its totient is φ = 140865536.

The previous prime is 302807257. The next prime is 302807269. The reversal of 302807264 is 462708203.

302807264 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 302807264.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302807269) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1266857 + ... + 1267095.

It is an arithmetic number, because the mean of its divisors is an integer number (8896860).

Almost surely, 2302807264 is an apocalyptic number.

302807264 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 302807264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320286960).

302807264 is an abundant number, since it is smaller than the sum of its proper divisors (337766656).

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

302807264 is a wasteful number, since it uses less digits than its factorization.

302807264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 302807264 is about 17401.3581079179. The cubic root of 302807264 is about 671.5145539761.

The spelling of 302807264 in words is "three hundred two million, eight hundred seven thousand, two hundred sixty-four".

Divisors: 1 2 4 8 16 17 32 34 68 136 137 239 272 274 289 478 544 548 578 956 1096 1156 1912 2192 2312 2329 3824 4063 4384 4624 4658 7648 8126 9248 9316 16252 18632 32504 32743 37264 39593 65008 65486 69071 74528 79186 130016 130972 138142 158372 261944 276284 316744 523888 552568 556631 633488 1047776 1105136 1113262 1266976 2210272 2226524 4453048 8906096 9462727 17812192 18925454 37850908 75701816 151403632 302807264