Search a number
-
+
258036620 = 22512901831
BaseRepresentation
bin11110110000101…
…01001110001100
3122222112121200212
433120111032030
51012024132440
641334341552
76252163232
oct1730251614
9588477625
10258036620
11122722806
12724ba8b8
13415c76ba
14263ac952
15179c0465
hexf61538c

258036620 has 12 divisors (see below), whose sum is σ = 541876944. Its totient is φ = 103214640.

The previous prime is 258036619. The next prime is 258036637. The reversal of 258036620 is 26630852.

258036620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2580366202 = 133165794522048800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6450896 + ... + 6450935.

It is an arithmetic number, because the mean of its divisors is an integer number (45156412).

Almost surely, 2258036620 is an apocalyptic number.

258036620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258036620 is an abundant number, since it is smaller than the sum of its proper divisors (283840324).

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

258036620 is a wasteful number, since it uses less digits than its factorization.

258036620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12901840 (or 12901838 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 258036620 is about 16063.5182945705. The cubic root of 258036620 is about 636.6397943149.

It can be divided in two parts, 25803 and 6620, that added together give a palindrome (32423).

The spelling of 258036620 in words is "two hundred fifty-eight million, thirty-six thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 12901831 25803662 51607324 64509155 129018310 258036620