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144744641251 = 753390147281
BaseRepresentation
bin1000011011001101110…
…0111111001011100011
3111211121111120121221221
42012303130333023203
54332414112010001
6150254511555511
713312623102430
oct2066334771343
9454544517857
10144744641251
1156427638361
122407682bb97
1310859853022
14701181ab87
153b725361a1
hex21b373f2e3

144744641251 has 8 divisors (see below), whose sum is σ = 168543625824. Its totient is φ = 121725951360.

The previous prime is 144744641213. The next prime is 144744641263. The reversal of 144744641251 is 152146447441.

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 144744641251 - 227 = 144610423523 is a prime.

It is a super-2 number, since 2×1447446412512 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144744641198 and 144744641207.

It is not an unprimeable number, because it can be changed into a prime (144744641281) 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, 195073270 + ... + 195074011.

It is an arithmetic number, because the mean of its divisors is an integer number (21067953228).

Almost surely, 2144744641251 is an apocalyptic number.

144744641251 is a deficient number, since it is larger than the sum of its proper divisors (23798984573).

144744641251 is an equidigital number, since it uses as much as digits as its factorization.

144744641251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390147341.

The product of its digits is 430080, while the sum is 43.

The spelling of 144744641251 in words is "one hundred forty-four billion, seven hundred forty-four million, six hundred forty-one thousand, two hundred fifty-one".

Divisors: 1 7 53 371 390147281 2731030967 20677805893 144744641251