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264041890 = 25721274243
BaseRepresentation
bin11111011110011…
…11010110100010
3200101211201101021
433233033112202
51020043320030
642111200054
76354214300
oct1757172642
9611751337
10264041890
11126054642
127451602a
134291ac08
14270d3270
15182a997a
hexfbcf5a2

264041890 has 48 divisors (see below), whose sum is σ = 557356032. Its totient is φ = 89794656.

The previous prime is 264041873. The next prime is 264041893. The reversal of 264041890 is 98140462.

It is not an unprimeable number, because it can be changed into a prime (264041893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60109 + ... + 64351.

It is an arithmetic number, because the mean of its divisors is an integer number (11611584).

Almost surely, 2264041890 is an apocalyptic number.

264041890 is an abundant number, since it is smaller than the sum of its proper divisors (293314142).

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

264041890 is a wasteful number, since it uses less digits than its factorization.

264041890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391 (or 4384 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 264041890 is about 16249.3658337795. The cubic root of 264041890 is about 641.5407944100.

The spelling of 264041890 in words is "two hundred sixty-four million, forty-one thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 127 245 254 490 635 889 1270 1778 4243 4445 6223 8486 8890 12446 21215 29701 31115 42430 59402 62230 148505 207907 297010 415814 538861 1039535 1077722 2079070 2694305 3772027 5388610 7544054 18860135 26404189 37720270 52808378 132020945 264041890