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145155050551 = 7131158293403
BaseRepresentation
bin1000011100101111101…
…0100100110000110111
3111212200002211120200101
42013023322210300313
54334234143104201
6150403332254531
713326035400130
oct2071372446067
9455602746611
10145155050551
11566182729a5
1224170171447
13108c389a574
147050130c87
153b985a3d01
hex21cbea4c37

145155050551 has 8 divisors (see below), whose sum is σ = 167157834624. Its totient is φ = 123468853560.

The previous prime is 145155050543. The next prime is 145155050563. The reversal of 145155050551 is 155050551541.

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 145155050551 - 23 = 145155050543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145155050551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145155050531) 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, 79145785 + ... + 79147618.

It is an arithmetic number, because the mean of its divisors is an integer number (20894729328).

Almost surely, 2145155050551 is an apocalyptic number.

145155050551 is a deficient number, since it is larger than the sum of its proper divisors (22002784073).

145155050551 is a wasteful number, since it uses less digits than its factorization.

145155050551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158293541.

The product of its (nonzero) digits is 62500, while the sum is 37.

The spelling of 145155050551 in words is "one hundred forty-five billion, one hundred fifty-five million, fifty thousand, five hundred fifty-one".

Divisors: 1 7 131 917 158293403 1108053821 20736435793 145155050551