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145292486 = 272646243
BaseRepresentation
bin10001010100011…
…11110011000110
3101010101121211012
420222033303012
5244143324421
622230042222
73412652153
oct1052176306
9333347735
10145292486
1175017439
12407a9372
13241412b1
141542122a
15cb4e95b
hex8a8fcc6

145292486 has 4 divisors (see below), whose sum is σ = 217938732. Its totient is φ = 72646242.

The previous prime is 145292471. The next prime is 145292491. The reversal of 145292486 is 684292541.

145292486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×1452924863 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36323120 + ... + 36323123.

It is an arithmetic number, because the mean of its divisors is an integer number (54484683).

Almost surely, 2145292486 is an apocalyptic number.

145292486 is a deficient number, since it is larger than the sum of its proper divisors (72646246).

145292486 is an equidigital number, since it uses as much as digits as its factorization.

145292486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72646245.

The product of its digits is 138240, while the sum is 41.

The square root of 145292486 is about 12053.7332806065. The cubic root of 145292486 is about 525.7117915887.

The spelling of 145292486 in words is "one hundred forty-five million, two hundred ninety-two thousand, four hundred eighty-six".

Divisors: 1 2 72646243 145292486