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67995936 = 253437709
BaseRepresentation
bin1000000110110…
…00100100100000
311201221112220000
410003120210200
5114401332221
610425220000
71453645611
oct403304440
9151845800
1067995936
1135422398
121a931600
13111195a8
14905dc08
155e81e26
hex40d8920

67995936 has 120 divisors (see below), whose sum is σ = 205668540. Its totient is φ = 22021632.

The previous prime is 67995931. The next prime is 67995997. The reversal of 67995936 is 63959976.

It can be written as a sum of positive squares in 2 ways, for example, as 67963536 + 32400 = 8244^2 + 180^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (67995931) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 95550 + ... + 96258.

Almost surely, 267995936 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 67995936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102834270).

67995936 is an abundant number, since it is smaller than the sum of its proper divisors (137672604).

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

67995936 is a wasteful number, since it uses less digits than its factorization.

67995936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 751 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 54.

The square root of 67995936 is about 8245.9648313584. The cubic root of 67995936 is about 408.1573787325.

The spelling of 67995936 in words is "sixty-seven million, nine hundred ninety-five thousand, nine hundred thirty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 37 48 54 72 74 81 96 108 111 144 148 162 216 222 288 296 324 333 432 444 592 648 666 709 864 888 999 1184 1296 1332 1418 1776 1998 2127 2592 2664 2836 2997 3552 3996 4254 5328 5672 5994 6381 7992 8508 10656 11344 11988 12762 15984 17016 19143 22688 23976 25524 26233 31968 34032 38286 47952 51048 52466 57429 68064 76572 78699 95904 102096 104932 114858 153144 157398 204192 209864 229716 236097 306288 314796 419728 459432 472194 612576 629592 708291 839456 918864 944388 1259184 1416582 1837728 1888776 2124873 2518368 2833164 3777552 4249746 5666328 7555104 8499492 11332656 16998984 22665312 33997968 67995936