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67125990 = 23514915017
BaseRepresentation
bin1000000000001…
…00001011100110
311200022100112210
410000010023212
5114141012430
610354424250
71443363411
oct400041346
9150270483
1067125990
1134988828
121a592086
1310ba3629
148cb4b78
155d5e2b0
hex40042e6

67125990 has 32 divisors (see below), whose sum is σ = 162194400. Its totient is φ = 17778944.

The previous prime is 67125973. The next prime is 67126009. The reversal of 67125990 is 9952176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3039 + ... + 11978.

It is an arithmetic number, because the mean of its divisors is an integer number (5068575).

Almost surely, 267125990 is an apocalyptic number.

67125990 is an abundant number, since it is smaller than the sum of its proper divisors (95068410).

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

67125990 is a wasteful number, since it uses less digits than its factorization.

67125990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15176.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 67125990 is about 8193.0452214058. The cubic root of 67125990 is about 406.4092349347.

The spelling of 67125990 in words is "sixty-seven million, one hundred twenty-five thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 149 298 447 745 894 1490 2235 4470 15017 30034 45051 75085 90102 150170 225255 450510 2237533 4475066 6712599 11187665 13425198 22375330 33562995 67125990