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305413052 = 22779138071
BaseRepresentation
bin10010001101000…
…011101110111100
3210021200120221112
4102031003232330
51111141204202
650150021152
710365653030
oct2215035674
9707616845
10305413052
1114744138a
12863477b8
134b3748a9
142c7c21c0
151bc2cb52
hex12343bbc

305413052 has 24 divisors (see below), whose sum is σ = 618562560. Its totient is φ = 129233520.

The previous prime is 305413039. The next prime is 305413057. The reversal of 305413052 is 250314503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305413057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66824 + ... + 71247.

It is an arithmetic number, because the mean of its divisors is an integer number (25773440).

Almost surely, 2305413052 is an apocalyptic number.

It is an amenable number.

305413052 is an abundant number, since it is smaller than the sum of its proper divisors (313149508).

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

305413052 is a wasteful number, since it uses less digits than its factorization.

305413052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138161 (or 138159 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 305413052 is about 17476.0708398656. The cubic root of 305413052 is about 673.4352796876.

Adding to 305413052 its reverse (250314503), we get a palindrome (555727555).

The spelling of 305413052 in words is "three hundred five million, four hundred thirteen thousand, fifty-two".

Divisors: 1 2 4 7 14 28 79 158 316 553 1106 2212 138071 276142 552284 966497 1932994 3865988 10907609 21815218 43630436 76353263 152706526 305413052