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67899097 = 7107269337
BaseRepresentation
bin1000000110000…
…00111011011001
311201202122001101
410003000323121
5114340232342
610423151401
71453063360
oct403007331
9151678041
1067899097
1135366662
121a8a5561
13110b44a6
1490367d7
155e633b7
hex40c0ed9

67899097 has 16 divisors (see below), whose sum is σ = 78848640. Its totient is φ = 57270528.

The previous prime is 67899089. The next prime is 67899119. The reversal of 67899097 is 79099876.

It is not a de Polignac number, because 67899097 - 23 = 67899089 is a prime.

It is a super-2 number, since 2×678990972 = 9220574746830818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67899047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201313 + ... + 201649.

It is an arithmetic number, because the mean of its divisors is an integer number (4928040).

Almost surely, 267899097 is an apocalyptic number.

It is an amenable number.

67899097 is a deficient number, since it is larger than the sum of its proper divisors (10949543).

67899097 is a wasteful number, since it uses less digits than its factorization.

67899097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720.

The product of its (nonzero) digits is 1714608, while the sum is 55.

The square root of 67899097 is about 8240.0908368780. The cubic root of 67899097 is about 407.9635223860.

The spelling of 67899097 in words is "sixty-seven million, eight hundred ninety-nine thousand, ninety-seven".

Divisors: 1 7 107 269 337 749 1883 2359 28783 36059 90653 201481 252413 634571 9699871 67899097