Search a number
-
+
145024961 = 792397681
BaseRepresentation
bin10001010010011…
…10011111000001
3101002220000211212
420221032133001
5244111244321
622220215505
73410456204
oct1051163701
9332800755
10145024961
1174954444
124069a595
13240795b3
141539193b
15caea55b
hex8a4e7c1

145024961 has 8 divisors (see below), whose sum is σ = 147494400. Its totient is φ = 142571520.

The previous prime is 145024951. The next prime is 145024981. The reversal of 145024961 is 169420541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145024961 - 26 = 145024897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145024951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15041 + ... + 22721.

It is an arithmetic number, because the mean of its divisors is an integer number (18436800).

Almost surely, 2145024961 is an apocalyptic number.

It is an amenable number.

145024961 is a deficient number, since it is larger than the sum of its proper divisors (2469439).

145024961 is an equidigital number, since it uses as much as digits as its factorization.

145024961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7999.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 145024961 is about 12042.6309833026. The cubic root of 145024961 is about 525.3889314523.

The spelling of 145024961 in words is "one hundred forty-five million, twenty-four thousand, nine hundred sixty-one".

Divisors: 1 79 239 7681 18881 606799 1835759 145024961