Search a number
-
+
155112371378 = 2131958799231
BaseRepresentation
bin1001000001110101101…
…0101111010010110010
3112211101001021212222122
42100131122233102302
510020132231341003
6155131352234242
714130554255036
oct2203532572262
9484331255878
10155112371378
115a867987468
122608a99b982
131181c793893
1477167441c6
15407c831238
hex241d6af4b2

155112371378 has 8 divisors (see below), whose sum is σ = 232844958720. Its totient is φ = 77497385140.

The previous prime is 155112371371. The next prime is 155112371443. The reversal of 155112371378 is 873173211551.

155112371378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155112371371) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 29396978 + ... + 29402253.

It is an arithmetic number, because the mean of its divisors is an integer number (29105619840).

Almost surely, 2155112371378 is an apocalyptic number.

155112371378 is a deficient number, since it is larger than the sum of its proper divisors (77732587342).

155112371378 is a wasteful number, since it uses less digits than its factorization.

155112371378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58800552.

The product of its digits is 176400, while the sum is 44.

The spelling of 155112371378 in words is "one hundred fifty-five billion, one hundred twelve million, three hundred seventy-one thousand, three hundred seventy-eight".

Divisors: 1 2 1319 2638 58799231 117598462 77556185689 155112371378