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305152164 = 22335389599
BaseRepresentation
bin10010001100000…
…100000010100100
3210021012100002000
4102030010002210
51111104332124
650140245300
710363515312
oct2214040244
9707170060
10305152164
11147283379
1286240830
134b2b2c15
142c7550b2
151bbca6c9
hex123040a4

305152164 has 96 divisors (see below), whose sum is σ = 816480000. Its totient is φ = 98512128.

The previous prime is 305152163. The next prime is 305152187. The reversal of 305152164 is 461251503.

305152164 is a `hidden beast` number, since 30 + 51 + 521 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (305152163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509137 + ... + 509735.

It is an arithmetic number, because the mean of its divisors is an integer number (8505000).

Almost surely, 2305152164 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 305152164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408240000).

305152164 is an abundant number, since it is smaller than the sum of its proper divisors (511327836).

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

305152164 is a wasteful number, since it uses less digits than its factorization.

305152164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 305152164 is about 17468.6050960001. The cubic root of 305152164 is about 673.2434725248.

The spelling of 305152164 in words is "three hundred five million, one hundred fifty-two thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 53 54 89 106 108 159 178 212 267 318 356 477 534 599 636 801 954 1068 1198 1431 1602 1797 1908 2396 2403 2862 3204 3594 4717 4806 5391 5724 7188 9434 9612 10782 14151 16173 18868 21564 28302 31747 32346 42453 53311 56604 63494 64692 84906 95241 106622 126988 127359 159933 169812 190482 213244 254718 285723 319866 380964 479799 509436 571446 639732 857169 959598 1142892 1439397 1714338 1919196 2825483 2878794 3428676 5650966 5757588 8476449 11301932 16952898 25429347 33905796 50858694 76288041 101717388 152576082 305152164