Search a number
-
+
71404100 = 22522932437
BaseRepresentation
bin1000100000110…
…00101001000100
311222100201000022
410100120221010
5121234412400
611030234312
71524632135
oct420305104
9158321008
1071404100
113733aa59
121bab5998
1311a40961
1496a9c8c
156406b85
hex4418a44

71404100 has 36 divisors (see below), whose sum is σ = 155539524. Its totient is φ = 28452480.

The previous prime is 71404087. The next prime is 71404103. The reversal of 71404100 is 140417.

It can be written as a sum of positive squares in 6 ways, for example, as 11062276 + 60341824 = 3326^2 + 7768^2 .

It is not an unprimeable number, because it can be changed into a prime (71404103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28082 + ... + 30518.

Almost surely, 271404100 is an apocalyptic number.

It is an amenable number.

71404100 is an abundant number, since it is smaller than the sum of its proper divisors (84135424).

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

71404100 is a wasteful number, since it uses less digits than its factorization.

71404100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744 (or 2737 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 71404100 is about 8450.0946740258. The cubic root of 71404100 is about 414.8658781759.

Adding to 71404100 its reverse (140417), we get a palindrome (71544517).

The spelling of 71404100 in words is "seventy-one million, four hundred four thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 293 586 1172 1465 2437 2930 4874 5860 7325 9748 12185 14650 24370 29300 48740 60925 121850 243700 714041 1428082 2856164 3570205 7140410 14280820 17851025 35702050 71404100