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400104930 = 23513336831
BaseRepresentation
bin10111110110010…
…001110111100010
31000212212102210010
4113312101313202
51304411324210
6103411345350
712625556451
oct2766216742
91025772703
10400104930
11195937835
12b1bb2256
1364b7a2a4
143b1d0b98
15251d4920
hex17d91de2

400104930 has 16 divisors (see below), whose sum is σ = 960251904. Its totient is φ = 106694640.

The previous prime is 400104899. The next prime is 400104949. The reversal of 400104930 is 39401004.

It is a junction number, because it is equal to n+sod(n) for n = 400104897 and 400104906.

It is an unprimeable number.

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, 6668386 + ... + 6668445.

It is an arithmetic number, because the mean of its divisors is an integer number (60015744).

Almost surely, 2400104930 is an apocalyptic number.

400104930 is an abundant number, since it is smaller than the sum of its proper divisors (560146974).

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

400104930 is a wasteful number, since it uses less digits than its factorization.

400104930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13336841.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 400104930 is about 20002.6230779865. The cubic root of 400104930 is about 736.8707216661.

Adding to 400104930 its reverse (39401004), we get a palindrome (439505934).

The spelling of 400104930 in words is "four hundred million, one hundred four thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 13336831 26673662 40010493 66684155 80020986 133368310 200052465 400104930