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7968672 = 253323401
BaseRepresentation
bin11110011001011110100000
3112222211222000
4132121132200
54014444142
6442444000
7124506165
oct36313640
915884860
107968672
114552a88
122803600
1318600ba
1410b606c
15a7614c
hex7997a0

7968672 has 96 divisors (see below), whose sum is σ = 24312960. Its totient is φ = 2534400.

The previous prime is 7968661. The next prime is 7968673. The reversal of 7968672 is 2768697.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an Ulam number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (7968673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19672 + ... + 20072.

It is an arithmetic number, because the mean of its divisors is an integer number (253260).

Almost surely, 27968672 is an apocalyptic number.

7968672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7968672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12156480).

7968672 is an abundant number, since it is smaller than the sum of its proper divisors (16344288).

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

7968672 is a wasteful number, since it uses less digits than its factorization.

7968672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 429 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 7968672 is about 2822.8836320330. The cubic root of 7968672 is about 199.7385918110.

The spelling of 7968672 in words is "seven million, nine hundred sixty-eight thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 23 24 27 32 36 46 48 54 69 72 92 96 108 138 144 184 207 216 276 288 368 401 414 432 552 621 736 802 828 864 1104 1203 1242 1604 1656 2208 2406 2484 3208 3312 3609 4812 4968 6416 6624 7218 9223 9624 9936 10827 12832 14436 18446 19248 19872 21654 27669 28872 36892 38496 43308 55338 57744 73784 83007 86616 110676 115488 147568 166014 173232 221352 249021 295136 332028 346464 442704 498042 664056 885408 996084 1328112 1992168 2656224 3984336 7968672