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145093801 is a prime number
BaseRepresentation
bin10001010010111…
…11010010101001
3101010000112021111
420221133102221
5244121000201
622221510321
73411163666
oct1051372251
9333015244
10145093801
11749a1136
12407123a1
13240a1a28
14153aca6d
15cb10b51
hex8a5f4a9

145093801 has 2 divisors, whose sum is σ = 145093802. Its totient is φ = 145093800.

The previous prime is 145093789. The next prime is 145093831. The reversal of 145093801 is 108390541.

145093801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124300201 + 20793600 = 11149^2 + 4560^2 .

It is a cyclic number.

It is not a de Polignac number, because 145093801 - 25 = 145093769 is a prime.

It is a super-2 number, since 2×1450938012 = 42104422177255202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145093831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72546900 + 72546901.

It is an arithmetic number, because the mean of its divisors is an integer number (72546901).

Almost surely, 2145093801 is an apocalyptic number.

It is an amenable number.

145093801 is a deficient number, since it is larger than the sum of its proper divisors (1).

145093801 is an equidigital number, since it uses as much as digits as its factorization.

145093801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 145093801 is about 12045.4888236219. The cubic root of 145093801 is about 525.4720483002.

The spelling of 145093801 in words is "one hundred forty-five million, ninety-three thousand, eight hundred one".