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65270244 = 2231319361
BaseRepresentation
bin1111100011111…
…1000111100100
311112211001221110
43320333013210
5113202121434
610250545020
71421534154
oct370770744
9145731843
1065270244
1133930556
1219a38170
13106a3a60
148950764
155ae44e9
hex3e3f1e4

65270244 has 96 divisors (see below), whose sum is σ = 175960960. Its totient is φ = 18714240.

The previous prime is 65270207. The next prime is 65270299. The reversal of 65270244 is 44207256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1069974 + ... + 1070034.

Almost surely, 265270244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65270244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87980480).

65270244 is an abundant number, since it is smaller than the sum of its proper divisors (110690716).

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

65270244 is a wasteful number, since it uses less digits than its factorization.

65270244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 65270244 is about 8079.0001856665. Note that the first 3 decimals coincide. The cubic root of 65270244 is about 402.6290243869.

The spelling of 65270244 in words is "sixty-five million, two hundred seventy thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 13 19 26 38 39 52 57 61 76 78 114 122 156 183 228 244 247 361 366 494 722 732 741 793 988 1083 1159 1444 1482 1586 2166 2318 2379 2964 3172 3477 4332 4636 4693 4758 6859 6954 9386 9516 13718 13908 14079 15067 18772 20577 22021 27436 28158 30134 41154 44042 45201 56316 60268 66063 82308 88084 89167 90402 132126 178334 180804 264252 267501 286273 356668 418399 535002 572546 836798 858819 1070004 1145092 1255197 1673596 1717638 2510394 3435276 5020788 5439187 10878374 16317561 21756748 32635122 65270244