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67013136 = 2433612543
BaseRepresentation
bin1111111110100…
…0101000010000
311200002121202000
43333220220100
5114123410021
610352154000
71442413401
oct377505020
9150077660
1067013136
1134910a63
121a538900
1310b64158
148c859a8
155d3ab26
hex3fe8a10

67013136 has 80 divisors (see below), whose sum is σ = 195582720. Its totient is φ = 21962880.

The previous prime is 67013123. The next prime is 67013159. The reversal of 67013136 is 63131076.

67013136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25081 + ... + 27623.

It is an arithmetic number, because the mean of its divisors is an integer number (2444784).

Almost surely, 267013136 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 67013136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97791360).

67013136 is an abundant number, since it is smaller than the sum of its proper divisors (128569584).

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

67013136 is a wasteful number, since it uses less digits than its factorization.

67013136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621 (or 2609 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 67013136 is about 8186.1551414568. The cubic root of 67013136 is about 406.1813518403.

The spelling of 67013136 in words is "sixty-seven million, thirteen thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 61 72 108 122 144 183 216 244 366 432 488 549 732 976 1098 1464 1647 2196 2543 2928 3294 4392 5086 6588 7629 8784 10172 13176 15258 20344 22887 26352 30516 40688 45774 61032 68661 91548 122064 137322 155123 183096 274644 310246 366192 465369 549288 620492 930738 1098576 1240984 1396107 1861476 2481968 2792214 3722952 4188321 5584428 7445904 8376642 11168856 16753284 22337712 33506568 67013136