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239906216 = 231121391783
BaseRepresentation
bin11100100110010…
…10110110101000
3121201102111110102
432103022312220
5442403444331
635450004532
75642112014
oct1623126650
9551374412
10239906216
1111346a100
1268416748
133a91a254
1423c0d544
15160dd4cb
hexe4cada8

239906216 has 48 divisors (see below), whose sum is σ = 498271200. Its totient is φ = 108203040.

The previous prime is 239906201. The next prime is 239906243. The reversal of 239906216 is 612609932.

239906216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 239906216.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133661 + ... + 135443.

It is an arithmetic number, because the mean of its divisors is an integer number (10380650).

Almost surely, 2239906216 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 239906216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249135600).

239906216 is an abundant number, since it is smaller than the sum of its proper divisors (258364984).

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

239906216 is a wasteful number, since it uses less digits than its factorization.

239906216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950 (or 1935 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 239906216 is about 15488.9062234878. The cubic root of 239906216 is about 621.3655437854.

The spelling of 239906216 in words is "two hundred thirty-nine million, nine hundred six thousand, two hundred sixteen".

Divisors: 1 2 4 8 11 22 44 88 121 139 242 278 484 556 968 1112 1529 1783 3058 3566 6116 7132 12232 14264 16819 19613 33638 39226 67276 78452 134552 156904 215743 247837 431486 495674 862972 991348 1725944 1982696 2726207 5452414 10904828 21809656 29988277 59976554 119953108 239906216