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145102927801 = 1311161763677
BaseRepresentation
bin1000011100100011001…
…1101111011110111001
3111212112110202110201011
42013020303233132321
54334132322142201
6150354231153521
713324533351556
oct2071063573671
9455473673634
10145102927801
11565a0902347
12241568158a1
13108b5b4abc0
147047243a2d
153b93c0a151
hex21c8cef7b9

145102927801 has 4 divisors (see below), whose sum is σ = 156264691492. Its totient is φ = 133941164112.

The previous prime is 145102927777. The next prime is 145102927813. The reversal of 145102927801 is 108729201541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7351347600 + 137751580201 = 85740^2 + 371149^2 .

It is a cyclic number.

It is not a de Polignac number, because 145102927801 - 211 = 145102925753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145102927001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5580881826 + ... + 5580881851.

It is an arithmetic number, because the mean of its divisors is an integer number (39066172873).

Almost surely, 2145102927801 is an apocalyptic number.

It is an amenable number.

145102927801 is a deficient number, since it is larger than the sum of its proper divisors (11161763691).

145102927801 is a wasteful number, since it uses less digits than its factorization.

145102927801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161763690.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 145102927801 in words is "one hundred forty-five billion, one hundred two million, nine hundred twenty-seven thousand, eight hundred one".

Divisors: 1 13 11161763677 145102927801