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685968058 = 219611392129
BaseRepresentation
bin101000111000110…
…000101010111010
31202210202210021101
4220320300222322
52401101434213
6152022402014
722666426606
oct5070605272
91683683241
10685968058
11322235a56
1217189030a
13ac168579
1467164506
154034ebdd
hex28e30aba

685968058 has 32 divisors (see below), whose sum is σ = 1109304000. Its totient is φ = 317157120.

The previous prime is 685968053. The next prime is 685968061. The reversal of 685968058 is 850869586.

It is a super-3 number, since 3×6859680583 (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (685968053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321138 + ... + 323266.

It is an arithmetic number, because the mean of its divisors is an integer number (34665750).

Almost surely, 2685968058 is an apocalyptic number.

685968058 is a deficient number, since it is larger than the sum of its proper divisors (423335942).

685968058 is a wasteful number, since it uses less digits than its factorization.

685968058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The square root of 685968058 is about 26190.9919247057. The cubic root of 685968058 is about 881.9310461431.

The spelling of 685968058 in words is "six hundred eighty-five million, nine hundred sixty-eight thousand, fifty-eight".

Divisors: 1 2 19 38 61 122 139 278 1159 2129 2318 2641 4258 5282 8479 16958 40451 80902 129869 161101 259738 295931 322202 591862 2467511 4935022 5622689 11245378 18051791 36103582 342984029 685968058