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664060250 = 25372151359
BaseRepresentation
bin100111100101001…
…100000101011010
31201021112202102002
4213211030011122
52324444412000
6145521041002
722312263500
oct4745140532
91637482362
10664060250
11310932327
12166486162
13a7767979
14642a0670
153d4738d5
hex2794c15a

664060250 has 96 divisors (see below), whose sum is σ = 1459710720. Its totient is φ = 225540000.

The previous prime is 664060237. The next prime is 664060253. The reversal of 664060250 is 52060466.

It is not an unprimeable number, because it can be changed into a prime (664060253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1849571 + ... + 1849929.

It is an arithmetic number, because the mean of its divisors is an integer number (15205320).

Almost surely, 2664060250 is an apocalyptic number.

664060250 is an abundant number, since it is smaller than the sum of its proper divisors (795650470).

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

664060250 is a wasteful number, since it uses less digits than its factorization.

664060250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 664060250 is about 25769.3665036609. The cubic root of 664060250 is about 872.4405205168.

The spelling of 664060250 in words is "six hundred sixty-four million, sixty thousand, two hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 125 151 175 245 250 302 350 359 490 718 755 875 1057 1225 1510 1750 1795 2114 2450 2513 3590 3775 5026 5285 6125 7399 7550 8975 10570 12250 12565 14798 17591 17950 18875 25130 26425 35182 36995 37750 44875 52850 54209 62825 73990 87955 89750 108418 125650 132125 175910 184975 264250 271045 314125 369950 379463 439775 542090 628250 758926 879550 924875 1355225 1849750 1897315 2198875 2656241 2710450 3794630 4397750 5312482 6776125 9486575 13281205 13552250 18973150 26562410 47432875 66406025 94865750 132812050 332030125 664060250