Search a number
-
+
123410031 = 359876871
BaseRepresentation
bin1110101101100…
…01011001101111
322121012212201220
413112301121233
5223043110111
620125034423
73025653003
oct726613157
9277185656
10123410031
1163730868
12353b5a13
131c74c0b4
1412566703
15ac7ae06
hex75b166f

123410031 has 8 divisors (see below), whose sum is σ = 164598144. Its totient is φ = 82247640.

The previous prime is 123410017. The next prime is 123410057. The reversal of 123410031 is 130014321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123410031 - 219 = 122885743 is a prime.

It is a super-2 number, since 2×1234100312 = 30460071502841922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123430031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14526 + ... + 21396.

It is an arithmetic number, because the mean of its divisors is an integer number (20574768).

Almost surely, 2123410031 is an apocalyptic number.

123410031 is a deficient number, since it is larger than the sum of its proper divisors (41188113).

123410031 is an equidigital number, since it uses as much as digits as its factorization.

123410031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12861.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 123410031 is about 11109.0067512807. The cubic root of 123410031 is about 497.8709888230.

Adding to 123410031 its reverse (130014321), we get a palindrome (253424352).

The spelling of 123410031 in words is "one hundred twenty-three million, four hundred ten thousand, thirty-one".

Divisors: 1 3 5987 6871 17961 20613 41136677 123410031