Search a number
-
+
407052830 = 2540705283
BaseRepresentation
bin11000010000110…
…010001000011110
31001100221102111202
4120100302020132
51313201142310
6104220315502
713041614642
oct3020621036
91040842452
10407052830
111998528a8
12b43a2b92
1366440882
143c0bcc22
1525b083a5
hex1843221e

407052830 has 8 divisors (see below), whose sum is σ = 732695112. Its totient is φ = 162821128.

The previous prime is 407052829. The next prime is 407052839. The reversal of 407052830 is 38250704.

It is a happy number.

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

It is a super-2 number, since 2×4070528302 = 331384012822017800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 407052793 and 407052802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407052839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20352632 + ... + 20352651.

It is an arithmetic number, because the mean of its divisors is an integer number (91586889).

Almost surely, 2407052830 is an apocalyptic number.

407052830 is a deficient number, since it is larger than the sum of its proper divisors (325642282).

407052830 is a wasteful number, since it uses less digits than its factorization.

407052830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40705290.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 407052830 is about 20175.5503022842. The cubic root of 407052830 is about 741.1115690444. Note that the first 3 decimals are identical.

The spelling of 407052830 in words is "four hundred seven million, fifty-two thousand, eight hundred thirty".

Divisors: 1 2 5 10 40705283 81410566 203526415 407052830