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145223062 = 272611531
BaseRepresentation
bin10001010011111…
…10110110010110
3101010021002120221
420221332312112
5244134114222
622224344554
73412242565
oct1051766626
9333232527
10145223062
1174a7a266
124077515a
132411880a
1415403bdc
15cb390c7
hex8a7ed96

145223062 has 4 divisors (see below), whose sum is σ = 217834596. Its totient is φ = 72611530.

The previous prime is 145223059. The next prime is 145223069. The reversal of 145223062 is 260322541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 260322541 = 877296833.

It is a super-3 number, since 3×1452230623 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145223069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36305764 + ... + 36305767.

It is an arithmetic number, because the mean of its divisors is an integer number (54458649).

Almost surely, 2145223062 is an apocalyptic number.

145223062 is a deficient number, since it is larger than the sum of its proper divisors (72611534).

145223062 is an equidigital number, since it uses as much as digits as its factorization.

145223062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72611533.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 145223062 is about 12050.8531648178. The cubic root of 145223062 is about 525.6280459641.

The spelling of 145223062 in words is "one hundred forty-five million, two hundred twenty-three thousand, sixty-two".

Divisors: 1 2 72611531 145223062