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145000978 = 2224332323
BaseRepresentation
bin10001010010010…
…00101000010010
3101002211210221121
420221020220102
5244110012403
622215512454
73410326243
oct1051105022
9332753847
10145000978
1174938421
124068872a
132406b6c5
1415386cca
15cae33bd
hex8a48a12

145000978 has 8 divisors (see below), whose sum is σ = 217605168. Its totient is φ = 72465924.

The previous prime is 145000967. The next prime is 145000979. The reversal of 145000978 is 879000541.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (145000979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11676 + ... + 20647.

It is an arithmetic number, because the mean of its divisors is an integer number (27200646).

Almost surely, 2145000978 is an apocalyptic number.

145000978 is a deficient number, since it is larger than the sum of its proper divisors (72604190).

145000978 is a wasteful number, since it uses less digits than its factorization.

145000978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34568.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 145000978 is about 12041.6351879635. The cubic root of 145000978 is about 525.3599683981.

The spelling of 145000978 in words is "one hundred forty-five million, nine hundred seventy-eight", and thus it is an aban number.

Divisors: 1 2 2243 4486 32323 64646 72500489 145000978