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67713472 = 2623157293
BaseRepresentation
bin1000000100100…
…11100111000000
311201102012102101
410002103213000
5114313312342
610415200144
71451361241
oct402234700
9151365371
1067713472
113524a152
121a816054
131104ab58
148dc8cc8
155e283b7
hex40939c0

67713472 has 56 divisors (see below), whose sum is σ = 141585696. Its totient is φ = 32068608.

The previous prime is 67713467. The next prime is 67713491. The reversal of 67713472 is 27431776.

It is a super-2 number, since 2×677134722 = 9170228580589568, which contains 22 as substring.

It is a congruent number.

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, 230958 + ... + 231250.

It is an arithmetic number, because the mean of its divisors is an integer number (2528316).

Almost surely, 267713472 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 67713472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70792848).

67713472 is an abundant number, since it is smaller than the sum of its proper divisors (73872224).

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

67713472 is a wasteful number, since it uses less digits than its factorization.

67713472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 475 counting only the distinct ones).

The product of its digits is 49392, while the sum is 37.

The square root of 67713472 is about 8228.8195994322. The cubic root of 67713472 is about 407.5914146226.

The spelling of 67713472 in words is "sixty-seven million, seven hundred thirteen thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 23 32 46 64 92 157 184 293 314 368 586 628 736 1172 1256 1472 2344 2512 3611 4688 5024 6739 7222 9376 10048 13478 14444 18752 26956 28888 46001 53912 57776 92002 107824 115552 184004 215648 231104 368008 431296 736016 1058023 1472032 2116046 2944064 4232092 8464184 16928368 33856736 67713472