Search a number
-
+
68999030 = 258977527
BaseRepresentation
bin1000001110011…
…01011101110110
311210211111212122
410013031131312
5120130432110
610502515542
71465324232
oct407153566
9153744778
1068999030
1135a47aa1
121b135bb2
13113ab039
1492415c2
1560ce255
hex41cd776

68999030 has 16 divisors (see below), whose sum is σ = 125595360. Its totient is φ = 27289152.

The previous prime is 68999017. The next prime is 68999093. The reversal of 68999030 is 3099986.

It is a super-2 number, since 2×689990302 = 9521732281881800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37874 + ... + 39653.

It is an arithmetic number, because the mean of its divisors is an integer number (7849710).

Almost surely, 268999030 is an apocalyptic number.

68999030 is a deficient number, since it is larger than the sum of its proper divisors (56596330).

68999030 is a wasteful number, since it uses less digits than its factorization.

68999030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77623.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 68999030 is about 8306.5654755741. The cubic root of 68999030 is about 410.1546709714.

The spelling of 68999030 in words is "sixty-eight million, nine hundred ninety-nine thousand, thirty".

Divisors: 1 2 5 10 89 178 445 890 77527 155054 387635 775270 6899903 13799806 34499515 68999030