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622068905 = 5242351347
BaseRepresentation
bin100101000101000…
…000010010101001
31121100112101010002
4211011000102221
52233222201110
6141421032345
721262332653
oct4505002251
91540471102
10622068905
1129a161637
121543b56b5
139bb54913
145c88d6d3
153992baa5
hex251404a9

622068905 has 8 divisors (see below), whose sum is σ = 746805312. Its totient is φ = 497440048.

The previous prime is 622068899. The next prime is 622068907. The reversal of 622068905 is 509860226.

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 622068905 - 210 = 622067881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622068907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13559 + ... + 37788.

It is an arithmetic number, because the mean of its divisors is an integer number (93350664).

Almost surely, 2622068905 is an apocalyptic number.

It is an amenable number.

622068905 is a deficient number, since it is larger than the sum of its proper divisors (124736407).

622068905 is a wasteful number, since it uses less digits than its factorization.

622068905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53775.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 622068905 is about 24941.3092078183. The cubic root of 622068905 is about 853.6493179791.

The spelling of 622068905 in words is "six hundred twenty-two million, sixty-eight thousand, nine hundred five".

Divisors: 1 5 2423 12115 51347 256735 124413781 622068905