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155505055441 = 2331218099657
BaseRepresentation
bin1001000011010011010…
…0101101011011010001
3112212101102012022020211
42100310310231123101
510021433243233231
6155234341004121
714143363106401
oct2206464553321
9485342168224
10155505055441
115aa4960584a
122617a3b3641
1311882c43208
147752962801
1540a204beb1
hex2434d2d6d1

155505055441 has 8 divisors (see below), whose sum is σ = 167500537344. Its totient is φ = 143945772960.

The previous prime is 155505055423. The next prime is 155505055481. The reversal of 155505055441 is 144550505551.

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 155505055441 - 219 = 155504531153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155505055394 and 155505055403.

It is not an unprimeable number, because it can be changed into a prime (155505055411) 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, 109049116 + ... + 109050541.

It is an arithmetic number, because the mean of its divisors is an integer number (20937567168).

Almost surely, 2155505055441 is an apocalyptic number.

It is an amenable number.

155505055441 is a deficient number, since it is larger than the sum of its proper divisors (11995481903).

155505055441 is a wasteful number, since it uses less digits than its factorization.

155505055441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218099711.

The product of its (nonzero) digits is 250000, while the sum is 40.

The spelling of 155505055441 in words is "one hundred fifty-five billion, five hundred five million, fifty-five thousand, four hundred forty-one".

Divisors: 1 23 31 713 218099657 5016292111 6761089367 155505055441