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664200236 = 227891931381
BaseRepresentation
bin100111100101101…
…110010000101100
31201021210212102202
4213211232100230
52330013401421
6145524041032
722313415560
oct4745562054
91637725382
10664200236
11310a18517
12166533178
13a77b65bb
14642d96a0
153d4a010b
hex2796e42c

664200236 has 48 divisors (see below), whose sum is σ = 1351264320. Its totient is φ = 279797760.

The previous prime is 664200191. The next prime is 664200239. The reversal of 664200236 is 632002466.

664200236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 664200199 and 664200208.

It is not an unprimeable number, because it can be changed into a prime (664200239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480266 + ... + 481646.

It is an arithmetic number, because the mean of its divisors is an integer number (28151340).

Almost surely, 2664200236 is an apocalyptic number.

It is an amenable number.

664200236 is an abundant number, since it is smaller than the sum of its proper divisors (687064084).

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

664200236 is a wasteful number, since it uses less digits than its factorization.

664200236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 664200236 is about 25772.0824924956. The cubic root of 664200236 is about 872.5018206162.

The spelling of 664200236 in words is "six hundred sixty-four million, two hundred thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 28 89 178 193 356 386 623 772 1246 1351 1381 2492 2702 2762 5404 5524 9667 17177 19334 34354 38668 68708 120239 122909 240478 245818 266533 480956 491636 533066 860363 1066132 1720726 1865731 3441452 3731462 7462924 23721437 47442874 94885748 166050059 332100118 664200236