Search a number
-
+
80907148 = 22717315483
BaseRepresentation
bin1001101001010…
…00101110001100
312122020111202001
410310220232030
5131203012043
612010042044
72001461620
oct464505614
9178214661
1080907148
1141740813
1223119324
13139ba26a
14aa61180
15718274d
hex4d28b8c

80907148 has 48 divisors (see below), whose sum is σ = 176891904. Its totient is φ = 31576320.

The previous prime is 80907143. The next prime is 80907157. The reversal of 80907148 is 84170908.

It is not an unprimeable number, because it can be changed into a prime (80907143) 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, 12015 + ... + 17497.

It is an arithmetic number, because the mean of its divisors is an integer number (3685248).

Almost surely, 280907148 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 80907148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88445952).

80907148 is an abundant number, since it is smaller than the sum of its proper divisors (95984756).

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

80907148 is a wasteful number, since it uses less digits than its factorization.

80907148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542 (or 5540 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 80907148 is about 8994.8400763994. The cubic root of 80907148 is about 432.5094797838.

The spelling of 80907148 in words is "eighty million, nine hundred seven thousand, one hundred forty-eight".

Divisors: 1 2 4 7 14 17 28 31 34 62 68 119 124 217 238 434 476 527 868 1054 2108 3689 5483 7378 10966 14756 21932 38381 76762 93211 153524 169973 186422 339946 372844 652477 679892 1189811 1304954 2379622 2609908 2889541 4759244 5779082 11558164 20226787 40453574 80907148