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720313401 = 3892697803
BaseRepresentation
bin101010111011110…
…001110000111001
31212012101201020010
4222323301300321
52433400012101
6155250452133
723564364033
oct5273616071
91765351203
10720313401
1133a664135
12181294049
13b6302362
146b944c53
15433862d6
hex2aef1c39

720313401 has 8 divisors (see below), whose sum is σ = 971209440. Its totient is φ = 474813152.

The previous prime is 720313387. The next prime is 720313417. The reversal of 720313401 is 104313027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 720313401 - 222 = 716119097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720313201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348635 + ... + 1349168.

It is an arithmetic number, because the mean of its divisors is an integer number (121401180).

Almost surely, 2720313401 is an apocalyptic number.

It is an amenable number.

720313401 is a deficient number, since it is larger than the sum of its proper divisors (250896039).

720313401 is a wasteful number, since it uses less digits than its factorization.

720313401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697895.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 720313401 is about 26838.6549774761. The cubic root of 720313401 is about 896.4109745891.

Adding to 720313401 its reverse (104313027), we get a palindrome (824626428).

The spelling of 720313401 in words is "seven hundred twenty million, three hundred thirteen thousand, four hundred one".

Divisors: 1 3 89 267 2697803 8093409 240104467 720313401