Search a number
-
+
145908246 = 231117130043
BaseRepresentation
bin10001011001001…
…10001000010110
3101011112220111010
420230212020112
5244323030441
622251153050
73421125321
oct1054461026
9334486433
10145908246
11753a8030
1240a45786
13242c8653
14155417b8
15cc22116
hex8b26216

145908246 has 32 divisors (see below), whose sum is σ = 337074048. Its totient is φ = 41613440.

The previous prime is 145908223. The next prime is 145908271. The reversal of 145908246 is 642809541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63900 + ... + 66143.

It is an arithmetic number, because the mean of its divisors is an integer number (10533564).

Almost surely, 2145908246 is an apocalyptic number.

145908246 is an abundant number, since it is smaller than the sum of its proper divisors (191165802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145908246 is a wasteful number, since it uses less digits than its factorization.

145908246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130076.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 145908246 is about 12079.2485693440. The cubic root of 145908246 is about 526.4534130129.

The spelling of 145908246 in words is "one hundred forty-five million, nine hundred eight thousand, two hundred forty-six".

Divisors: 1 2 3 6 11 17 22 33 34 51 66 102 187 374 561 1122 130043 260086 390129 780258 1430473 2210731 2860946 4291419 4421462 6632193 8582838 13264386 24318041 48636082 72954123 145908246