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80975104 = 28773619
BaseRepresentation
bin1001101001110…
…01010100000000
312122100221221221
410310321110000
5131212200404
612011324424
72002164010
oct464712400
9178327857
1080975104
1141787881
1223150714
1313a12182
14aa7bc40
157197954
hex4d39500

80975104 has 72 divisors (see below), whose sum is σ = 187557440. Its totient is φ = 34172928.

The previous prime is 80975101. The next prime is 80975113. The reversal of 80975104 is 40157908.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80975104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80975101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130507 + ... + 131125.

Almost surely, 280975104 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 80975104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93778720).

80975104 is an abundant number, since it is smaller than the sum of its proper divisors (106582336).

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

80975104 is an equidigital number, since it uses as much as digits as its factorization.

80975104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 80975104 is about 8998.6167825950. The cubic root of 80975104 is about 432.6305378519.

The spelling of 80975104 in words is "eighty million, nine hundred seventy-five thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 73 112 128 146 224 256 292 448 511 584 619 896 1022 1168 1238 1792 2044 2336 2476 4088 4333 4672 4952 8176 8666 9344 9904 16352 17332 18688 19808 32704 34664 39616 45187 65408 69328 79232 90374 130816 138656 158464 180748 277312 316309 361496 554624 632618 722992 1109248 1265236 1445984 2530472 2891968 5060944 5783936 10121888 11567872 20243776 40487552 80975104