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505412896 = 2537283139
BaseRepresentation
bin11110000111111…
…111110100100000
31022020000122011011
4132013333310200
52013341203041
6122052430304
715344636662
oct3607776440
91266018134
10505412896
1123a32420a
12121318394
138092bab1
144b1a4532
152e586e81
hex1e1ffd20

505412896 has 72 divisors (see below), whose sum is σ = 1042418160. Its totient is φ = 241166592.

The previous prime is 505412893. The next prime is 505412911. The reversal of 505412896 is 698214505.

It is not an unprimeable number, because it can be changed into a prime (505412893) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3635995 + ... + 3636133.

It is an arithmetic number, because the mean of its divisors is an integer number (14478030).

Almost surely, 2505412896 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 505412896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521209080).

505412896 is an abundant number, since it is smaller than the sum of its proper divisors (537005264).

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

505412896 is a wasteful number, since it uses less digits than its factorization.

505412896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 505412896 is about 22481.3899926139. The cubic root of 505412896 is about 796.5543977537.

The spelling of 505412896 in words is "five hundred five million, four hundred twelve thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 16 32 37 74 83 139 148 166 278 296 332 556 592 664 1112 1184 1328 1369 2224 2656 2738 3071 4448 5143 5476 6142 10286 10952 11537 12284 20572 21904 23074 24568 41144 43808 46148 49136 82288 92296 98272 113627 164576 184592 190291 227254 369184 380582 426869 454508 761164 853738 909016 1522328 1707476 1818032 3044656 3414952 3636064 6089312 6829904 13659808 15794153 31588306 63176612 126353224 252706448 505412896