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145350307471 = 617235575863
BaseRepresentation
bin1000011101011110001…
…1011010111010001111
3111220011201020122211011
42013113203122322033
54340134134314341
6150434545310051
713333626141235
oct2072743327217
9456151218734
10145350307471
1156708506356
1224205635327
13109251839c5
14706c03a955
153baa7c2b81
hex21d78dae8f

145350307471 has 4 divisors (see below), whose sum is σ = 145585883952. Its totient is φ = 145114730992.

The previous prime is 145350307441. The next prime is 145350307481. The reversal of 145350307471 is 174703053541.

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

It is a cyclic number.

It is not a de Polignac number, because 145350307471 - 227 = 145216089743 is a prime.

It is a super-3 number, since 3×1453503074713 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145350307441) 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, 117787315 + ... + 117788548.

It is an arithmetic number, because the mean of its divisors is an integer number (36396470988).

Almost surely, 2145350307471 is an apocalyptic number.

145350307471 is a deficient number, since it is larger than the sum of its proper divisors (235576481).

145350307471 is an equidigital number, since it uses as much as digits as its factorization.

145350307471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235576480.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 145350307471 in words is "one hundred forty-five billion, three hundred fifty million, three hundred seven thousand, four hundred seventy-one".

Divisors: 1 617 235575863 145350307471