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67897842 = 2373915313
BaseRepresentation
bin1000000110000…
…00100111110010
311201202120022220
410003000213302
5114340212332
610423141510
71453056615
oct403004762
9151676286
1067897842
1135365721
121a8a4896
13110b3a4c
14903617c
155e62d2c
hex40c09f2

67897842 has 16 divisors (see below), whose sum is σ = 135988320. Its totient is φ = 22600512.

The previous prime is 67897807. The next prime is 67897859. The reversal of 67897842 is 24879876.

It is a super-2 number, since 2×678978422 = 9220233896513928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3223 + ... + 12090.

It is an arithmetic number, because the mean of its divisors is an integer number (8499270).

Almost surely, 267897842 is an apocalyptic number.

67897842 is an abundant number, since it is smaller than the sum of its proper divisors (68090478).

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

67897842 is a wasteful number, since it uses less digits than its factorization.

67897842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16057.

The product of its digits is 1354752, while the sum is 51.

The square root of 67897842 is about 8240.0146844529. The cubic root of 67897842 is about 407.9610088652.

The spelling of 67897842 in words is "sixty-seven million, eight hundred ninety-seven thousand, eight hundred forty-two".

Divisors: 1 2 3 6 739 1478 2217 4434 15313 30626 45939 91878 11316307 22632614 33948921 67897842