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264212880 = 24351100887
BaseRepresentation
bin11111011111110…
…01000110010000
3200102011101221020
433233321012100
51020114303010
642114555440
76355525641
oct1757710620
9612141836
10264212880
11126161058
1274598b80
134297a9a9
14271396c8
15182e0470
hexfbf9190

264212880 has 40 divisors (see below), whose sum is σ = 819060672. Its totient is φ = 70456704.

The previous prime is 264212873. The next prime is 264212887. The reversal of 264212880 is 88212462.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (264212873) and next prime (264212887).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (264212887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550204 + ... + 550683.

Almost surely, 2264212880 is an apocalyptic number.

264212880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264212880 is an abundant number, since it is smaller than the sum of its proper divisors (554847792).

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

264212880 is a wasteful number, since it uses less digits than its factorization.

264212880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100903 (or 1100897 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 264212880 is about 16254.6264183463. The cubic root of 264212880 is about 641.6792489428.

The spelling of 264212880 in words is "two hundred sixty-four million, two hundred twelve thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 1100887 2201774 3302661 4403548 5504435 6605322 8807096 11008870 13210644 16513305 17614192 22017740 26421288 33026610 44035480 52842576 66053220 88070960 132106440 264212880