Search a number
-
+
31455054 = 234194167
BaseRepresentation
bin111011111111…
…1011101001110
32012012002020000
41313333131032
531023030204
63042105130
7531235461
oct167773516
965162200
1031455054
1116834714
12a64b1a6
136694377
14426b2d8
152b65039
hex1dff74e

31455054 has 20 divisors (see below), whose sum is σ = 70482984. Its totient is φ = 10484964.

The previous prime is 31455041. The next prime is 31455071. The reversal of 31455054 is 45055413.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 96922 + ... + 97245.

Almost surely, 231455054 is an apocalyptic number.

31455054 is an abundant number, since it is smaller than the sum of its proper divisors (39027930).

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

31455054 is a wasteful number, since it uses less digits than its factorization.

31455054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194181 (or 194172 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 31455054 is about 5608.4805428922. The cubic root of 31455054 is about 315.6676993370.

The spelling of 31455054 in words is "thirty-one million, four hundred fifty-five thousand, fifty-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 194167 388334 582501 1165002 1747503 3495006 5242509 10485018 15727527 31455054