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264660253 = 111321959127
BaseRepresentation
bin11111100011001…
…10010100011101
3200110000010121121
433301212110131
51020223112003
642132330541
76362401144
oct1761462435
9613003547
10264660253
11126437190
1274773a51
1342aa6500
142721475b
151837ccbd
hexfc6651d

264660253 has 48 divisors (see below), whose sum is σ = 337305600. Its totient is φ = 205208640.

The previous prime is 264660229. The next prime is 264660257. The reversal of 264660253 is 352066462.

It is a de Polignac number, because none of the positive numbers 2k-264660253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264660257) 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, 2083876 + ... + 2084002.

It is an arithmetic number, because the mean of its divisors is an integer number (7027200).

Almost surely, 2264660253 is an apocalyptic number.

It is an amenable number.

264660253 is a deficient number, since it is larger than the sum of its proper divisors (72645347).

264660253 is a wasteful number, since it uses less digits than its factorization.

264660253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 264660253 is about 16268.3820031373. The cubic root of 264660253 is about 642.0412147659.

The spelling of 264660253 in words is "two hundred sixty-four million, six hundred sixty thousand, two hundred fifty-three".

Divisors: 1 11 13 19 59 127 143 169 209 247 649 767 1121 1397 1651 1859 2413 2717 3211 7493 8437 9971 12331 14573 18161 21463 26543 31369 35321 82423 97409 109681 142367 160303 189449 236093 345059 407797 1071499 1266317 1566037 1850771 2083939 4485767 13929487 20358481 24060023 264660253