Search a number
-
+
154121251351 = 416161623851
BaseRepresentation
bin1000111110001001010…
…1111010101000010111
3112201210222022202220111
42033202111322220113
510011120020020401
6154445145143451
714064161010214
oct2174225725027
9481728282814
10154121251351
115a3a9479301
1225a52a8ab87
13116c2345522
147660c68b0b
154020805e51
hex23e257aa17

154121251351 has 8 divisors (see below), whose sum is σ = 160468510608. Its totient is φ = 147897240000.

The previous prime is 154121251343. The next prime is 154121251357. The reversal of 154121251351 is 153152121451.

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

It is a cyclic number.

It is not a de Polignac number, because 154121251351 - 23 = 154121251343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154121251357) 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, 30809425 + ... + 30814426.

It is an arithmetic number, because the mean of its divisors is an integer number (20058563826).

Almost surely, 2154121251351 is an apocalyptic number.

154121251351 is a deficient number, since it is larger than the sum of its proper divisors (6347259257).

154121251351 is an equidigital number, since it uses as much as digits as its factorization.

154121251351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61623953.

The product of its digits is 6000, while the sum is 31.

It can be divided in two parts, 15412125 and 1351, that added together give a square (15413476 = 39262).

The spelling of 154121251351 in words is "one hundred fifty-four billion, one hundred twenty-one million, two hundred fifty-one thousand, three hundred fifty-one".

Divisors: 1 41 61 2501 61623851 2526577891 3759054911 154121251351