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157155440441 = 179419981467
BaseRepresentation
bin1001001001011100110…
…0011011011100111001
3120000122102200112212012
42102113030123130321
510033323243043231
6200110214255305
714232313126436
oct2222714333471
9500572615765
10157155440441
116071617049a
122655b057535
1311a86b3a69c
14786bc10b8d
15414bd9ee2b
hex249731b739

157155440441 has 8 divisors (see below), whose sum is σ = 166417714080. Its totient is φ = 147895148608.

The previous prime is 157155440419. The next prime is 157155440459. The reversal of 157155440441 is 144044551751.

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

It is not a de Polignac number, because 157155440441 - 210 = 157155439417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157155440401) 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, 330611 + ... + 650856.

It is an arithmetic number, because the mean of its divisors is an integer number (20802214260).

Almost surely, 2157155440441 is an apocalyptic number.

It is an amenable number.

157155440441 is a deficient number, since it is larger than the sum of its proper divisors (9262273639).

157155440441 is an equidigital number, since it uses as much as digits as its factorization.

157155440441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990903.

The product of its (nonzero) digits is 224000, while the sum is 41.

The spelling of 157155440441 in words is "one hundred fifty-seven billion, one hundred fifty-five million, four hundred forty thousand, four hundred forty-one".

Divisors: 1 17 9419 160123 981467 16684939 9244437673 157155440441