Search a number
-
+
38961258 = 237927649
BaseRepresentation
bin1001010010100…
…0000001101010
32201022102210120
42110220001222
534433230013
63511024110
7652110450
oct224500152
981272716
1038961258
111aaa1196
121106b036
1380c1acb
1452629d0
153649123
hex252806a

38961258 has 16 divisors (see below), whose sum is σ = 89054400. Its totient is φ = 11131776.

The previous prime is 38961257. The next prime is 38961271. The reversal of 38961258 is 85216983.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 927649 = 38961258 / (3 + 8 + 9 + 6 + 1 + 2 + 5 + 8).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38961253) 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, 463783 + ... + 463866.

It is an arithmetic number, because the mean of its divisors is an integer number (5565900).

Almost surely, 238961258 is an apocalyptic number.

38961258 is an abundant number, since it is smaller than the sum of its proper divisors (50093142).

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

38961258 is a wasteful number, since it uses less digits than its factorization.

38961258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927661.

The product of its digits is 103680, while the sum is 42.

The square root of 38961258 is about 6241.8953852175. The cubic root of 38961258 is about 339.0088145218.

It can be divided in two parts, 3 and 8961258, that added together give a triangular number (8961261 = T4233).

The spelling of 38961258 in words is "thirty-eight million, nine hundred sixty-one thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 7 14 21 42 927649 1855298 2782947 5565894 6493543 12987086 19480629 38961258