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67674285 = 355773109
BaseRepresentation
bin1000000100010…
…10000010101101
311201100012200000
410002022002231
5114311034120
610414254513
71451136060
oct402120255
9151305600
1067674285
1135222768
121a7b7439
1311036073
148db88d7
155e1b990
hex408a0ad

67674285 has 96 divisors (see below), whose sum is σ = 142222080. Its totient is φ = 30233088.

The previous prime is 67674283. The next prime is 67674311. The reversal of 67674285 is 58247676.

It is not a de Polignac number, because 67674285 - 21 = 67674283 is a prime.

It is a super-2 number, since 2×676742852 = 9159617700522450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 67674285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67674283) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 620811 + ... + 620919.

It is an arithmetic number, because the mean of its divisors is an integer number (1481480).

Almost surely, 267674285 is an apocalyptic number.

It is an amenable number.

67674285 is an abundant number, since it is smaller than the sum of its proper divisors (74547795).

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

67674285 is a wasteful number, since it uses less digits than its factorization.

67674285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 197 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 67674285 is about 8226.4381721374. The cubic root of 67674285 is about 407.5127726309.

The spelling of 67674285 in words is "sixty-seven million, six hundred seventy-four thousand, two hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 73 81 105 109 135 189 219 243 315 327 365 405 511 545 567 657 763 945 981 1095 1215 1533 1635 1701 1971 2289 2555 2835 2943 3285 3815 4599 4905 5913 6867 7665 7957 8505 8829 9855 11445 13797 14715 17739 20601 22995 23871 26487 29565 34335 39785 41391 44145 55699 61803 68985 71613 88695 103005 119355 124173 132435 167097 185409 206955 214839 278495 309015 358065 501291 620865 644517 835485 927045 1074195 1503873 1933551 2506455 3222585 4511619 7519365 9667755 13534857 22558095 67674285