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67048272 = 24321761449
BaseRepresentation
bin1111111111000…
…1001101010000
311200011101221100
43333301031100
5114131021042
610353024400
71442621004
oct377611520
9150141840
1067048272
11349353a5
121a555100
1310b77145
148c94704
155d4624c
hex3ff1350

67048272 has 120 divisors (see below), whose sum is σ = 202386600. Its totient is φ = 20643840.

The previous prime is 67048271. The next prime is 67048277. The reversal of 67048272 is 27284076.

It can be written as a sum of positive squares in 4 ways, for example, as 5645376 + 61402896 = 2376^2 + 7836^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67048271) 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, 149104 + ... + 149552.

It is an arithmetic number, because the mean of its divisors is an integer number (1686555).

Almost surely, 267048272 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 67048272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101193300).

67048272 is an abundant number, since it is smaller than the sum of its proper divisors (135338328).

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

67048272 is a wasteful number, since it uses less digits than its factorization.

67048272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 67048272 is about 8188.3009226579. The cubic root of 67048272 is about 406.2523284442.

It can be divided in two parts, 670482 and 72, that multiplied together give a square (48274704 = 69482).

The spelling of 67048272 in words is "sixty-seven million, forty-eight thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 34 36 48 51 61 68 72 102 122 136 144 153 183 204 244 272 306 366 408 449 488 549 612 732 816 898 976 1037 1098 1224 1347 1464 1796 2074 2196 2448 2694 2928 3111 3592 4041 4148 4392 5388 6222 7184 7633 8082 8296 8784 9333 10776 12444 15266 16164 16592 18666 21552 22899 24888 27389 30532 32328 37332 45798 49776 54778 61064 64656 68697 74664 82167 91596 109556 122128 137394 149328 164334 183192 219112 246501 274788 328668 366384 438224 465613 493002 549576 657336 931226 986004 1099152 1314672 1396839 1862452 1972008 2793678 3724904 3944016 4190517 5587356 7449808 8381034 11174712 16762068 22349424 33524136 67048272